1247:
the supervision or assessment of the accused. A Review Board is responsible for both accused persons found NCR or accused persons found unfit to stand trial on account of mental disorder. A Review Board dealing with an NCR offender must consider two questions: whether the accused is a "significant threat to the safety of the public" and, if so, what the "least onerous and least restrictive" restrictions on the liberty of the accused should be in order to mitigate such a threat. Proceedings before a Review Board are inquisitorial rather than adversarial. Often the Review Board will be active in conducting an inquiry. Where the Review Board is unable to conclude that the accused is a significant threat to the safety of the public, the review board must grant the accused an absolute discharge, an order essentially terminating the jurisdiction of the criminal law over the accused. Otherwise, the Review Board must order that the accused be either discharged subject to conditions or detained in a hospital, both subject to conditions. The conditions imposed must be the least onerous and least restrictive necessary to mitigate any danger the accused may pose to others.
1477:. I say, where the insanity is absolute, and is duly proved: For if reason and humanity enforce the plea in these circumstances, it is no less necessary to observe a caution and reserve in applying the law, as shall hinder it from being understood, that there is any privilege in a case of mere weakness of intellect, or a strange and moody humor, or a crazy and capricious or irritable temper. In none of these situations does or can the law excuse the offender. Because such constitutions are not exclusive of a competent understanding of the true state of the circumstances in which the deed is done, nor of the subsistence of some steady and evil passion, grounded in those circumstances, and directed to a certain object. To serve the purpose of a defense in law, the disorder must therefore amount to an absolute alienation of reason,
1029:
requires the permission of the Home
Secretary), a "supervision and treatment" order, or an absolute discharge. Unlike defendants who are found guilty of a crime, they are not institutionalized for a fixed period, but rather held in the institution until they are determined not to be a threat. Authorities making this decision tend to be cautious, and as a result, defendants can often be institutionalized for longer than they would have been incarcerated in prison.
43:
303:
686:. The rules define the defense as "at the time of committing the act the party accused was labouring under such a defect of reason, from disease of the mind, as not to know the nature and quality of the act he was doing, or as not to know that what he was doing was wrong." The key is that the defendant could not appreciate the nature of their actions during the commission of the crime.
935:
responsibility in
England and Wales, whereas in Scotland it is a product of case law. The number of findings of diminished responsibility has been matched by a fall in unfitness to plead and insanity findings. A plea of diminished capacity is different from a plea of insanity in that "reason of insanity" is a full defense while "diminished capacity" is merely a plea to a lesser crime.
1598:, in a botched attempt to assassinate the prime minister himself. M'Naghten apparently believed that the prime minister was the architect of the myriad of personal and financial misfortunes that had befallen him. During his trial, nine witnesses testified to the fact that he was insane, and the jury acquitted him, finding him "not guilty by reason of insanity".
1281:
determination, the Review Board must then determine what conditions should be imposed on the accused, considering both the protection of the public and the maintenance of the fitness of the accused (or conditions which would render the accused fit). Previously an absolute discharge was unavailable to an unfit accused. However, in R. v. Demers, the
1682:- a standard for legal insanity that serves as a compromise between the strict M'Naghten Rule, the lenient Durham ruling, and the irresistible impulse test. Under the MPC standard, which represents the modern trend, a defendant is not responsible for criminal conduct "if at the time of such conduct as a result of mental disease or defect he lacks
1728:. The ALI test was discarded in favor of a new test that more closely resembled M'Naghten's. Under this new test only perpetrators suffering from severe mental illnesses at the time of the crime could successfully employ the insanity defense. The defendant's ability to control himself or herself was no longer a consideration.
1654:. The test has more lenient guidelines for the insanity defense, but it addressed the issue of convicting mentally ill defendants, which was allowed under the M'Naghten Rule. However, the Durham standard drew much criticism because of its expansive definition of legal insanity. It was abandoned in the 1970s, after the case of
1351:. Section 63 stipulates that if the offender is deemed at risk of committing further offences that will harm others or cause grave economic damage, and if they therefore pose a continuing threat to public safety, they shall be committed to a psychiatric hospital in lieu of a custodial or suspended prison sentence.
1129:. However, definitions of the defence are derived from M'Naghten's case and have not been codified. Whether a particular condition amounts to a disease of the mind is not a medical but a legal question to be decided in accordance with the ordinary rules of interpretation. This defence is an exception to the
1811:
study regarding the percentage of people with mental illness who come into contact with police, appear as criminal defendants, are incarcerated, or are under community supervision. Furthermore, the scope of this issue varies across jurisdictions. Accordingly, advocates should rely as much as possible
1605:
asked the judges of the common law courts to answer five questions on insanity as a criminal defence, and the formulation that emerged from their review—that a defendant should not be held responsible for their actions only if, as a result of their mental disease or defect, they (i) did not know that
1442:
establishes that a person who during the commission of an illegal act was in a state of insanity, that is, could not be aware of the actual nature and social danger of their actions or was unable to control them due to a chronic mental disorder, a temporary mental disorder, or dementia is not subject
1383:
If the inculpability defense succeeds, the defendant cannot be ordered to incarceration proper. If the defendant is deemed to be criminally insane (i.e. deemed to pose a risk to himself or others), the court instead may order involuntary admission to a mental institution for further evaluation and/or
1289:
An additional requirement for an unfit accused is the holding of a "prima facie case" hearing every two years. The Crown must demonstrate to the court having jurisdiction over the accused that it still has sufficient evidence to try the accused. If the Crown fails to meet this burden then the accused
1280:
An accused who is found to be unfit to stand trial is subject to the jurisdiction a Review Board. While the considerations are essentially the same, there are a few provisions which apply only to unfit accused. A Review Board must determine whether the accused is fit to stand trial. Regardless of the
1161:
the court stated that a symptom indicating a disease of the mind must be prone to recur and be the result of an underlying pathological infirmity. A 'defect of reason' is the inability to think rationally and pertains to incapacity to reason, rather than having unsound ideas or difficulty with such a
1865:
The insanity defense is also complicated because of the underlying differences in philosophy between psychiatrists/psychologists and legal professionals. In the United States, a psychiatrist, psychologist or other mental health professional is often consulted as an expert witness in insanity cases,
1752:
The appellate court affirmed the lower court's judgment: "Having thus elected to make himself a member of that 'exceptional class' of persons who seek verdicts of not guilty by reason of insanity...he cannot now be heard to complain of the statutory consequences of his election." The court held that
1325:
and their actions just as a sane defendant, but the insanity will only affect the punishment. The definition of insanity is similar to the M'Naught criterion above: "the accused is insane, if during the act, due to a mental illness, profound mental retardation or a severe disruption of mental health
1764:
As an alternative to the insanity defense, some jurisdictions permit a defendant to plead guilty but mentally ill. A defendant who is found guilty but mentally ill may be sentenced to mental health treatment, at the conclusion of which the defendant will serve the remainder of their sentence in the
1472:
We may next attend to the case of those unfortunate persons, who have plead the miserable defense of idiocy or insanity. Which condition, if it is not an assumed or imperfect, but a genuine and thorough insanity, and is proved by the testimony of intelligent witnesses, makes the act like that of an
1264:
In 1992 when the new mental disorder provisions were enacted, Parliament included "capping" provisions which were to be enacted at a later date. These capping provisions limited the jurisdiction of a Review Board over an accused based on the maximum potential sentence had the accused been convicted
1257:
danger to the public while many "sane" accused are detained on the basis that they are dangerous. Moreover, the notion of "significant threat to the safety of the public" is a "criminal threat". This means that the Review Board must find that the threat posed by the accused is of a criminal nature.
1285:
struck down the provision restricting the availability of an absolute discharge to an accused person who is deemed both "permanently unfit" and not a significant threat to the safety of the public. Presently a Review Board may recommend a judicial stay of proceedings in the event that it finds the
1246:
and is composed of at least three members, a person who is a judge or eligible to be a judge, a psychiatrist and another expert in a relevant field, such as social work, criminology or psychology. Parties at a Review Board hearing are usually the accused, the Crown and the hospital responsible for
825:
Therefore, a person whose mental disorder is not in dispute is determined to be sane if the court decides that despite a "mental illness" the defendant was responsible for the acts committed and will be treated in court as a normal defendant. If the person has a mental illness and it is determined
1546:
In the United States, a criminal defendant may plead insanity in federal court, and in the state courts of every state except for Idaho, Kansas, Montana, and Utah. However, defendants in states that disallow the insanity defense may still be able to demonstrate that a defendant was not capable of
934:
Diminished responsibility or diminished capacity can be employed as a mitigating factor or partial defense to crimes. In the United States, diminished capacity is applicable to more circumstances than the insanity defense. The
Homicide Act 1957 is the statutory basis for the defense of diminished
1573:
Each state and the federal court system currently uses one of the following "tests" to define insanity for purposes of the insanity defense. Over its decades of use the definition of insanity has been modified by statute, with changes to the availability of the insanity defense, what constitutes
1002:
This increased coverage gives the impression that the defense is widely used, but this is not the case. According to an eight-state study, the insanity defense is used in less than 1% of all court cases and, when used, has only a 26% success rate. Of those cases that were successful, 90% of the
1256:
the sole justification for its jurisdiction is public safety. Therefore, the nature of the inquiry is the danger the accused may pose to public safety rather than whether the accused is "cured". For instance, many "sick" accused persons are discharged absolutely on the basis that they are not a
1028:
In
England and Wales, under the Criminal Procedure (Insanity and Unfitness to Plead) Act of 1991 (amended by the Domestic Violence, Crime and Victims Act, 2004 to remove the option of a guardianship order), the court can mandate a hospital order, a restriction order (where release from hospital
507:
with the appropriate test according to the jurisdiction. Their testimony guides the jury, but they are not allowed to testify to the accused's criminal responsibility, as this is a matter for the jury to decide. Similarly, mental health practitioners are restrained from making a judgment on the
1359:
If the ability to recognize the right or wrong of action or the ability to act accordingly is lost due to a mental disorder, then the defendant cannot be pursued under
Japanese criminal law so if this is recognized during a trial then an innocent judgment will be given. This is, however, rare,
1334:
if they are found insane. The offender receives no judicial punishment; they become a patient under the jurisdiction of THL, and must be released immediately once the conditions of involuntary commitment are no longer fulfilled. Diminished responsibility is also available, resulting in lighter
826:
that the mental illness interfered with the person's ability to determine right from wrong (and other associated criteria a jurisdiction may have) and if the person is willing to plead guilty or is proven guilty in a court of law, some jurisdictions have an alternative option known as either a
1368:
Section 39 of the Dutch criminal code stipulates: "Not culpable is he who performs an act that he cannot be imputed with due to the deficient development or pathological disorder of his mental faculties". Obviously critical are the definitions of "deficient development" and/or "pathological
1302:
In
Denmark a psychotic person who commits a criminal defense is declared guilty but is sentenced to mandatory treatment instead of prison. Section 16 of the penal code states that "Persons, who, at the time of the act, were irresponsible owing to mental illness or similar conditions or to a
649:, declared that a person was insane if their mental capacity was no more than that of a "wild beast" (in the sense of a dumb animal, rather than being frenzied). The first complete transcript of an insanity trial dates to 1724. It is likely that the insane, like those under 14, were spared
1133:(1935) 'golden thread', as the party raising the issue of the defence of mental illness bears the burden of proving this defence on the balance of probabilities. Generally, the defence will raise the issue of insanity. However, the prosecution can raise it in exceptional circumstances:
581:
Although typically used in law, this term can also be used metaphorically or figuratively; e.g. when one is in a confused state, intoxicated, or not of sound mind. The term may be applied when a determination of competency needs to be made by a physician for purposes of obtaining
1437:
A forensic psychiatric examination is used to establish insanity. The result of the forensic examination is then subjected to a legal assessment, taking into account other circumstances of the case, from which a conclusion is drawn about the defendant's sanity or insanity. The
1420:
In Norway, psychotic perpetrators are declared guilty but not punished and, instead of prison, they are sentenced to mandatory treatment. Section 44 of the penal code states specifically that "a person who at the time of the crime was insane or unconscious is not punished".
1594:, state, among other things, and evaluating the criminal responsibility for defendants claiming to be insane were settled in the British courts in the case of Daniel M'Naghten in 1843. M'Naghten was a Scottish woodcutter who killed the secretary to the prime minister,
1564:
by abolishing an insanity defense based on a defendant's incapacity to distinguish right from wrong. The Court emphasized that state governments have broad discretion to choose laws defining "the precise relationship between criminal culpability and mental illness."
1854:
upholding
Arizona's limitations on the insanity defense. In that same ruling, the Court noted "We have never held that the Constitution mandates an insanity defense, nor have we held that the Constitution does not so require." In 2020, the Supreme Court decided
1753:
no direct attack upon the final judgment of acquittal by reason of insanity was possible. It also held that the collateral attack that he was not informed that a possible alternative to his commitment was to ask for a new trial was not a meaningful alternative.
794:
The issue of competency is whether a defendant is able to adequately assist their attorney in preparing a defense, make informed decisions about trial strategy and whether to plead guilty, accept a plea agreement or plead not guilty. This issue is dealt with in
1606:
their act would be wrong; or (ii) did not understand the nature and quality of their actions—became the basis of the law governing legal responsibility in cases of insanity in
England. Under the rules, loss of control because of mental illness was no defense.
1411:
of the defendant; in such case, a diminished prison sentence should be ordered. This can also be combined with the aforementioned involuntary admission to a mental institution, although in these cases the two 'sentences' often run/are served in parallel.
1870:
judgment of the defendant's sanity is determined by a jury, not by a mental health professional. In other words, mental health professionals provide testimony and professional opinion but are not ultimately responsible for answering legal questions.
3606:
2714:
1147:, that the accused did not know what he was doing, or that the accused did not appreciate that what he was doing was morally wrong, in both cases the accused must be operating under a 'defect of reason, from a disease of the mind'. The High Court in
1260:
While proceedings before a Review Board are less formal than in court, there are many procedural safeguards available to the accused given the potential indefinite nature of Part XX.1. Any party may appeal against the decision of a Review Board.
1203:
first that the person who committed the act was suffering from a "disease of the mind", and second, that at the time of the offence they were either 1) unable to appreciate the "nature and quality" of the act, or 2) did not know it was "wrong".
858:
insane during the commission of a crime, but they later regained their sanity after the criminal act was carried out. This legal defense developed in the 19th century and became especially associated with the defense of individuals committing
586:
for treatments and, if necessary, assigning a surrogate to make health care decisions. While the proper sphere for this determination is in a court of law, this is practically, and most frequently, made by physicians in the clinical setting.
1975:
2874:
The Times, (Raymond
Gregory, on the advice of his lawyer, pleaded insanity in 1971 to being asleep drunk on a building site in Washington DC, USA with a pen knife in his pocket. He was kept locked up for 39 years), Retrieved 4 June
1481:– such a disease as deprives the patient of the knowledge of the true aspect and position of things about them - hinders them from distinguishing friend from foe – and gives them up to the impulse of their own distempered fancy.
1303:
pronounced mental deficiency, are not punishable". This means that in
Denmark, 'insanity' is a legal term rather than a medical term and that the court retains the authority to decide whether an accused person is irresponsible.
1326:
or consciousness, he cannot understand the actual nature of his act or its illegality, or that his ability to control his behavior is critically weakened". If an accused is suspected to be insane, the court must consult the
1861:
upholding Kansas' abolition of the insanity defense, stating that the Constitution does not require Kansas to adopt an insanity test that turns on a defendant's ability to recognize that their crime was morally wrong.
1467:
The Scottish Law Commission, in its Discussion Paper No 122 on Insanity and Diminished Responsibility (2003) confirms that the law has not substantially changed from the position stated in Hume's Commentaries in 1797:
1061:
A person is mentally incompetent to commit an offence if, at the time of the conduct alleged to give rise to the offence, the person is suffering from a mental impairment and, in consequence of the mental impairment—
1609:
The M'Naghten rule was embraced with almost no modification by American courts and legislatures for more than 100 years, until the mid-20th century. It was first used as a defense in the United States in the case of
930:
rights, saying that the jury is to be instructed to consider mitigating factors when answering unrelated questions. This ruling suggests specific explanations to the jury are necessary to weigh mitigating factors.
1241:
Once a person is found not criminally responsible ("NCR"), they will have a hearing by a Review Board within 45 days (90 days if the court extends the delay). A Review Board is established under Part XX.1 of the
971:, 700 A.2d 694 (Conn. App. Ct. 1997), the petitioner who had originally been found not guilty by reason of insanity and committed for ten years to the jurisdiction of a Psychiatric Security Review Board, filed a
1276:
The issue of mental disorder may also come into play before a trial even begins if the accused's mental state prevents the accused from being able to appreciate the nature of a trial and to conduct a defence.
842:(1975) was the first state to create a GBMI verdict, after two prisoners released after being found NGRI committed violent crimes within a year of release, one raping two women and the other killing his wife.
3594:
2702:
515:
Some jurisdictions require the evaluation to address the defendant's ability to control their behavior at the time of the offense (the volitional limb). A defendant claiming the defense is pleading "
390:. The insanity defense is also contrasted with a finding that a defendant cannot stand trial in a criminal case because a mental disease prevents them from effectively assisting counsel, from a
1622:
for a crime Freeman insisted he did not commit. This was a novel defense at the time, and produced much controversy in the town of Auburn, New York, and throughout the United States at large.
426:
1265:(e.g. there would be a cap of 5 years if the maximum penalty for the index offence is 5 years). However, these provisions were never proclaimed into force and were subsequently repealed.
1731:
The Act also curbed the scope of expert psychiatric testimony and adopted stricter procedures regarding the hospitalization and release of those found not guilty by reason of insanity.
747:
3457:
2422:
905:
2359:
1327:
1578:, the standard of proof required at trial, trial procedures, and to commitment and release procedures for defendants who have been acquitted based on a finding of insanity.
1501:
In the United States, variances in the insanity defense between states, and in the federal court system, are attributable to differences with respect to three key issues:
927:
770:
The defense of insanity takes different guises in different jurisdictions, and there are differences between legal systems with regard to the availability, definition and
743:
3663:
1379:
Based on the criteria above, there is a reasonable assumption the deficient development or pathological disorder of his mental faculties excuses culpability of the crime.
2867:
1459:
Although use of the insanity defense is rare, since the Criminal Procedure (Insanity and Unfitness to Plead) Act 1991, insanity pleas have steadily increased in the UK.
53:
3397:
1748:
the court ruled persons found not guilty by reason of insanity and later want to challenge their confinement may not attack their initial successful insanity defense:
994:
in 1979, the court ruled that the insanity defense cannot be imposed upon an unwilling defendant if an intelligent defendant voluntarily wishes to forgo the defense.
672:
of 1843 were not a codification or definition of insanity but rather the responses of a panel of judges to hypothetical questions posed by Parliament in the wake of
3295:
3201:
1980:
2042:
3688:
1745:
1686:
either to appreciate the criminality of their conduct or to conform their conduct to the requirements of the law." The test thus takes into account both the
3940:
3801:
1086:(b) unable to exercise (or to give rational instructions about the exercise of) procedural rights (such as, for example, the right to challenge jurors); or
981:
and the court vacated his insanity acquittal. He was granted a new trial and found guilty of the original charges, receiving a prison sentence of 40 years.
807:
Competency largely deals with the defendant's present condition, while criminal responsibility addresses the condition at the time the crime was committed.
333:
1369:
disorder". These are to be verified by somatomedical and/or psychiatric specialists. An inculpability defense needs to conform to the following criteria:
2519:
2494:
1079:
A person is mentally unfit to stand trial on a charge of an offence if the person's mental processes are so disordered or impaired that the person is —
3721:
1451:
In Sweden, psychotic perpetrators are seen as accountable, but the sanction is, if they are psychotic at the time of the trial, forensic mental care.
1347:, those who commit an illegal act because a mental disorder makes them unable to see the wrong of the act or to act on this insight is considered not
1113:
the mental impairment affected the accused so they either did not understand the nature and quality of the conduct, or did not know that it was wrong.
3116:
3096:
3003:
2941:
2346:
3292:
Salize & Dressing (2005Placement and Treatment of Mentally Ill Offenders – Legislation and Practice in EU Member States. Final Report. Mannheim
1918:
1392:
period of time (when the defendant's ailment is deemed to be difficult or impossible to treat, or can be supposed to be refractory to treatment).
704:
2440:
527:" in some jurisdictions which, if successful, may result in the defendant being committed to a psychiatric facility for an indeterminate period.
3129:
3595:"Federal Insanity Acquittees - Person Found Not Guilty by Reason of Insanity May Not Attack His Successful Insanity Defense in Habeas Petition"
2816:
2464:
864:
3774:
3165:
2749:
2391:
2033:
1373:
The defendant suffered from deficient development or pathological disorder of his mental faculties at the time at which the crime took place;
665:, mandated detention at the regent's pleasure (indefinitely) even for those who, although insane at the time of the offence, were now sane.
378:, in which the defendant is responsible, but the responsibility is lessened due to a temporary mental state. It is also contrasted with the
1017:
In the United States, those found to have been not guilty by reason of mental disorder or insanity are generally then required to undergo
2634:
2072:
1713:
1538:
ruled that a person could not be held "indefinitely" for psychiatric treatment following a finding of not guilty by reason of insanity.
653:. When that was replaced by trial by jury, members were expected to find the insane guilty but then to refer the case to the king for a
3358:
3437:
2801:
1557:
1535:
1162:
task. Examples of disease of the mind include Arteriosclerosis (considered so because the hardening of the arteries affects the mind.
3545:
3524:
2542:
2313:
2144:
2110:
1889:
87:
3324:
2125:
American Psychiatric Association: The Insanity Defense: Position Statement. Washington, DC: APA Document Reference No. 820002, 1982
1734:
Those acquitted of a federal offense by reason of insanity have not been able to challenge their psychiatric confinement through a
838:
verdict. The GBMI verdict is available as an alternative to, rather than in lieu of, a "not guilty by reason of insanity" verdict.
3072:
2013:
1194:
that rendered the person incapable of appreciating the nature and quality of the act or omission or of knowing that it was wrong.
3655:
2168:
1929:
1106:
1997 which replaced the common law defence of insanity and indefinite detention at the governor's pleasure with the following:
326:
31:
3198:
Salize & Dressing (2005): Placement and Treatment of Mentally Ill Offenders – Legislation and Practice in EU Member States
2864:
1429:
Insanity is determined through a judicial decision issued on the basis of expert opinions of psychiatrists and psychologists.
1268:
A Review Board must hold a hearing every 12 months (unless extended to 24 months) until the accused is discharged absolutely.
3630:
3493:
2845:
Rodriguez, J.; LeWinn, L.; Perlin, M. (1983). "The insanity defense under siege: Legislative assaults and legal rejoinders".
1634:
179:
3945:
3389:
2739:
1520:: whether the defendant has the duty of proving insanity or the prosecutor has the duty of disproving insanity, and by what
1286:
accused both "permanently unfit" and non-dangerous. The decision is left to the court having jurisdiction over the accused.
1117:
These requirements are almost identical to the M'Naghten Rules, substituting "mental impairment" for "disease of the mind".
1376:
There is a probable causal relationship between deficient development or pathological (mental) disorder and the crime ; and
1725:
1721:
379:
3284:
3190:
3975:
3970:
3853:
Ellis, J. W. (1986). "The Consequences of the Insanity Defense: Proposals to reform post-acquittal commitment laws". 35
3247:
2611:
2586:
1709:
2381:
1816:
Some U.S. states have begun to ban the use of the insanity defense, and in 1994 the Supreme Court denied a petition of
1388:(when complete or at least sufficient recovery of mental faculties on a relatively short time scale is probable) or an
725:. The prosecutor had argued that the respondent's silence after receiving Miranda warnings was evidence of his sanity.
3092:
2038:
2017:
895:
787:
708:
2559:
1083:(a) unable to understand, or to respond rationally to, the charge or the allegations on which the charge is based; or
69:
2498:
1720:
was shifted from the prosecution to the defense and the standard of evidence in federal trials was increased from a
1089:(c) unable to understand the nature of the proceedings, or to follow the evidence or the course of the proceedings.
3960:
3695:
2275:
658:
319:
1485:
The phrase "absolute alienation of reason" is still regarded as at the core of the defense in the modern law (see
947:
may be a defense, a mitigating factor or an aggravating factor. However, most jurisdictions differentiate between
1900:
1773:
In a majority of states, the burden of proving insanity is placed on the defendant, who must prove insanity by a
1651:
139:
3980:
3574:
2999:
2975:
2937:
1907:
1656:
1200:
990:
963:
Several cases have ruled that persons found not guilty by reason of insanity may not withdraw the defense in a
713:
184:
2917:
3718:
3036:
2979:
1841:
1439:
1290:
is discharged and proceedings are terminated. The nature of the hearing is virtually identical to that of a
1282:
1229:
1187:
657:. From 1500 onwards, juries could acquit the insane, and detention required a separate civil procedure. The
3580:
1407:
degree of deficient development or pathological (mental) disorder), there may still be a legal basis for a
810:
In the United States, a trial in which the insanity defense is invoked typically involves the testimony of
3935:
1942:
1675:
1331:
1252:
1177:
1012:
944:
387:
169:
164:
3656:"U.S. Attorneys' Manual, Criminal Resource Manual Sec. 638. Burden of Proving Insanity—18 U.S.C. § 17(b)"
955:. In some cases, intoxication (usually involuntary intoxication) may be covered by the insanity defense.
3985:
2426:
1821:
1788:
1774:
1735:
1717:
1691:
1575:
1521:
771:
194:
65:
1632:
The strict M'Naghten standard for the insanity defense was widely used until the 1950s and the case of
1238:. The new provisions also replaced the old insanity defense with the current mental disorder defence.
3793:
Boland, F. (1996). "Insanity, the Irish Constitution and the European Convention on Human Rights". 47
3965:
3161:
3133:
1913:
1882:
1740:
1618:
represented William Freeman and argued that Freeman was mentally insane after being committed to the
1225:
1099:
1022:
968:
875:
642:
618:
485:
144:
2824:
2472:
2190:
Appelbaum, Paul S. (1 November 2007). "Assessment of patients' competence to consent to treatment".
433:(American Legal Institute Model Penal Code rule), and other provisions, often relating to a lack of
1619:
1530:
1291:
1043:
673:
594:
was most commonly used when the defendant invoked religious or magical explanations for behaviour.
504:
497:
493:
375:
3765:
Schlesinger, Louis B. (2009). "Forensic Psychology". In James, Stuart H. and Jon J. Nordby (ed.).
3155:
2954:
1125:
In New South Wales, the defence has been renamed the 'Defence of Mental Illness' in Part 4 of the
3916:
3449:
2256:
2215:
1965:
1844:
found that their state's abolition of the defense was unconstitutional as a violation of Federal
1561:
879:
691:
646:
563:
481:
227:
149:
3936:
Frontline—From Daniel M'Naughten to John Hinckley: A Brief History of the Insanity Defense
3860:
Gostin, L. (1982). "Human Rights, Judicial Review and the Mentally Disordered Offender". (1982)
1923:
1590:
669:
3738:
3485:
3419:
3112:
3088:
3908:
3867:
Vatz, R. (December 19, 2013). "Affluenza: just the latest way to shirk legal responsibility".
3770:
3541:
3520:
3489:
3239:
3068:
2745:
2683:
2626:
2538:
2513:
2387:
2309:
2207:
2140:
2106:
2064:
2029:
1936:
1705:
1615:
1216:
which held that "wrong" was NOT restricted to "legally wrong" but to "morally wrong" as well.
919:
915:
883:
860:
774:, as well as the role of judges, juries and medical experts. In jurisdictions where there are
711:
and to an evidentiary hearing in court on the question of their competency to be executed. In
536:
473:
418:
189:
105:
778:, it is common for the decision about the sanity of an accused to be determined by the jury.
721:
to comment during the court proceedings on the petitioner's silence invoked as a result of a
3900:
3821:
3365:
2735:
2413:
2246:
2199:
1960:
1857:
1850:
1837:
1781:
1671:
1552:
967:
petition to pursue an alternative, although there have been exceptions in other rulings. In
900:
871:
800:
738:
730:
696:
611:
583:
464:
411:
407:
199:
154:
124:
2971:
2797:
2418:
3725:
3052:
3024:
2871:
2021:
1970:
1646:
their mental illness (i.e., crime would not have been committed but for the disease). The
1614:
in 1847, where an Afro-Native man from Auburn, New York was tried for a quadruple murder.
1595:
1473:
infant, and equally bestows the privilege of an entire exemption from any manner of pain;
1344:
1191:
1055:
910:
751:
722:
650:
489:
355:
2885:
1148:
3876:
3769:(3rd ed.). Boca Raton, FL: CRC Press/Taylor & Francis Group. pp. 585–604.
3320:
3028:
1780:
In a minority of states, the burden is placed on the prosecution, who must prove sanity
3478:
2302:
1949:
1602:
1322:
867:
819:
742:, 589 U.S. ___ (2020), is a case in which the US Supreme Court justices ruled that the
680:
677:
662:
638:
603:
509:
371:
283:
129:
3954:
2771:
2342:
2100:
2025:
1836:
have also banned the defense. However, a mentally ill defendant/patient can be found
1799:
The insanity plea is used in the U.S. Criminal Justice System in less than 1% of all
1642:
case, the court ruled that a defendant is entitled to acquittal if the crime was the
1313:
1250:
Since the Review Board is empowered under criminal law powers under s. 91(27) of the
1213:
1058:, the Criminal Law Consolidation Act 1935 (SA) provides that: 269C—Mental competence
985:
977:
923:
626:
574:
363:
3920:
3840:
Dalby, J. T. (2006). "The case of Daniel McNaughton: Let's get the story straight".
2219:
1153:
stated that the condition of the accused's mind is relevant only at the time of the
480:
In the United Kingdom, Ireland, and the United States, use of the defense is rare.
2995:
2933:
1800:
1787:
In federal court the burden is placed on the defendant, who must prove insanity by
1514:: when the defense is available, what facts will support a finding of insanity, and
1209:
1199:
To establish a claim of mental disorder the party raising the issue must show on a
815:
811:
654:
607:
440:
399:
383:
278:
263:
253:
248:
223:
3480:
Hot Topics: Everything You Ever Wanted to Know About the Fifty Major Controversies
3344:
RD Mackay, BJ Mitchell, L Howe (2006) 'Yet more facts about the insanity defence'
2672:"Intoxication and settled insanity: A finding of not guilty by reason of insanity"
3261:
2560:"Evaluating Michigan's Guilty but Mentally Ill Verdict: An Empirical Study Study"
1650:, also called the Product Test, is broader than either the M'Naghten test or the
402:
where a will is nullified because it was made when a mental disorder prevented a
3904:
2160:
1845:
1647:
1348:
1234:
822:, present opinions on the defendant's state of mind at the time of the offense.
683:
422:
302:
17:
3560:
Freeman's Challenge: The Murder That Shook America's Original Prison for Profit
2656:
1803:
cases. Little is known about the criminal justice system and the mentally ill:
1046:, each of which may have different rules governing mental impairment defenses.
762:
cases that are based on the defendant's ability to recognize right from wrong.
471:, and has been reinterpreted and modernized through more recent cases, such as
2441:"Opinion analysis: Majority upholds Kansas scheme for mentally ill defendants"
1976:
United States federal laws governing offenders with mental diseases or defects
1817:
1154:
1018:
775:
755:
718:
700:
630:
391:
307:
268:
237:
204:
113:
3227:
417:
Legal definitions of insanity or mental disorder are varied, and include the
3767:
Forensic science: an introduction to scientific and investigative techniques
2671:
2383:
The American Dictionary of Criminal Justice: Key Terms and Major Court Cases
1687:
1508:: whether the jurisdiction allows a defendant to raise the insanity defense,
1321:, literally "unable to guarantee guilt"). Thus, an insane defendant may be
1207:
The meaning of the word "wrong" was determined in the Supreme Court case of
395:
367:
273:
3912:
3243:
2798:"Criminal Procedure (Insanity and Unfitness to Plead) Act 1991, Chapter 25"
2687:
2211:
707:. It further stated that a person under the death penalty is entitled to a
406:
from recognizing the natural objects of their bounty, and from involuntary
3825:
2277:
The Romantic Story of the Puritan Fathers: And Their Founding of NewBoston
3517:
The rules of insanity: moral responsibility and the mentally ill offender
2203:
1679:
839:
759:
634:
615:
560:
435:
430:
403:
258:
3453:
1475:
Cum alterum innocentia concilii tuetur, alterum fati infelicitas excusat
30:"Not Criminally Responsible" redirects here. For the Canadian film, see
2260:
1186:
16. (1) No person is criminally responsible for an act committed or an
3262:"LOV 1902-05-22 nr 10: Almindelig borgerlig Straffelov (Straffeloven)"
3228:"Personality Disorders and Criminal Law: An International Perspective"
676:'s acquittal for the homicide of Edward Drummond, whom he mistook for
374:
at the time of the criminal act. This is contrasted with an excuse of
2627:"Diminished capacity, as opposed to not guilty by reason of insanity"
1955:
1829:
972:
964:
622:
359:
174:
3809:
2251:
2234:
2235:"History of insanity as a defence to crime in English Criminal Law"
1311:
In Finland, punishments can only be administered if the accused is
3893:
The Annals of the American Academy of Political and Social Science
1825:
545:
159:
3877:"The Criminal Process and Persons Suffering from Mental Disorder"
717:(1986), the Court ruled that it was fundamentally unfair for the
484:, including things not eligible for the insanity defense such as
3802:
The John Hinckley Trial & Its Effect on the Insanity Defense
3232:
Journal of the American Academy of Psychiatry and the Law Online
1894:
1833:
1712:
was found not guilty by reason of insanity, Congress passed the
1547:
forming intent to commit a crime as a result of mental illness.
1175:
The defence of mental disorder is codified in section 16 of the
568:
3321:"Criminal Procedure (Insanity and Unfitness to Plead) Act 1991"
2465:"Mentally Disordered Offenders - The Crown Prosecution Service"
1933:, a Canadian documentary film about the mental disorder defense
1812:
on statistics collected by local and state government agencies.
1791:. See 18 U.S.C.S. Sec. 17(b); see also A.R.S. Sec. 13-502(C).
1560:
held, in a 6–3 ruling, that a state does not violate the
1102:
the current defence of mental impairment was introduced in the
878:. The temporary insanity defense was unsuccessfully pleaded by
3875:
The Law Reform Commission of Western Australia (August 1991).
3438:"Insanity Defense Reform in the United States - Post Hinckley"
1003:
defendants had been previously diagnosed with mental illness.
786:
An important distinction to be made is the difference between
661:, passed with retrospective effect following the acquittal of
36:
2676:
The Journal of the American Academy of Psychiatry and the Law
443:
of Australia and Canada, statutory legislation enshrines the
52:
deal primarily with the United States and do not represent a
2345:, (1843) 8 Eng Rep 718; ALL ER Rep 229 (19 June 1843),
1574:
legal insanity, whether the prosecutor or defendant has the
1228:
after the previous scheme was found unconstitutional by the
1143:. The NSW Supreme Court has held there are two limbs to the
734:, upholding Arizona's restrictions on the insanity defense.
2334:
2332:
2330:
2328:
2326:
1066:(a) does not know the nature and quality of the conduct; or
796:
3891:
Walker, Nigel (1985). "The Insanity Defense before 1800".
3436:
Callahan, Lisa; Meyer, Connie; Steadman, Henry J. (1987).
2137:
Forensic Psychological Assessment: An Integrative Approach
1139:
Australian cases have further qualified and explained the
427:
1953 British Royal Commission on Capital Punishment report
3599:
Journal of the American Academy of Psychiatry and the Law
3536:
Michael T. Molan, Mike Molan, Duncan Bloy, Denis Lanser,
3238:(2). American Academy of Psychiatry and the Law: 168–81.
2707:
Journal of the American Academy of Psychiatry and the Law
2139:. Needham Heights, MA: Simon & Schuster. p. 69.
3191:"Concepts and Procedures in the Member States – Denmark"
2914:
Crimes (Mental Impairment and Unfitness to be Tried) Act
2304:
Crime and Insanity in England:The Historical Perspective
1104:
Crimes (Mental Impairment and Unfitness to be Tried) Act
3285:"Concepts and Procedures in the Member States – Sweden"
1110:
the accused was suffering from a mental impairment; and
463:
is one basis for being found to be legally insane as a
457:
not criminally responsible by reason of mental disorder
61:
1479:
ut continua mentis alienatione, omni intellectu careat
1824:
case that upheld Montana's abolition of the defense.
602:
The concept of defense by insanity has existed since
540:(Latin) is a legal term meaning "not of sound mind".
3683:
3681:
943:
Depending on jurisdiction, circumstances and crime,
906:
United States Court of Appeals for the Fifth Circuit
410:
to a mental institution, when anyone is found to be
3834:
The Butler Committee on Mentally Abnormal Offenders
2537:. Westbury, NY: The Foundation Press. p. 537.
625:in 1638 for murdering her daughter, as at the time
572:), meaning "of mind". It is the direct opposite of
27:
Legal concept regarding a defendant's state of mind
3810:"The Late Lord Chief Justice of England on Lunacy"
3477:
2301:
1224:The current legislative scheme was created by the
3625:
3623:
3030:
2039:"Criminal Law: Cases and Materials, 7th edition"
1330:(THL), which is obliged to place the accused in
3562:. The University of Chicago Press. p. 135.
3364:. Scotlawcom.gov.uk. p. 11. Archived from
1805:
1750:
1470:
1317:, of sound mind; not if the accused is insane (
1069:(b) does not know that the conduct is wrong; or
3946:Survey of US states' insanity defense criteria
2930:Bratty v Attorney-General for Northern Ireland
2533:Bonnie, Richard J.; Coughlin, Anne M. (1997).
2065:"The insanity defense and diminished capacity"
1981:List of people acquitted by reason of insanity
874:in 1859 after he had killed his wife's lover,
370:is not responsible for their actions due to a
3442:Mental & Physical Disability Law Reporter
3016:
3014:
3012:
2094:
2092:
2090:
1360:happening in only around 1 in 500,000 cases.
918:in death penalty cases that do not ask about
863:. The defense was first successfully used by
327:
50:The examples and perspective in this article
8:
2955:Mental Health (Forensic Provisions) Act 1990
2772:"The Insanity Defense in Criminal Law Cases"
1746:U.S. Court of Appeals for the Eighth Circuit
1127:Mental Health (Forensic Provisions) Act 1990
1025:, except in the case of temporary insanity.
461:incapable of distinguishing right from wrong
414:or to be a danger to themself or to others.
3760:
3758:
3431:
3429:
2893:Law Reform Commission of Western Australia
914:) have been clear in their decisions that
890:Mitigating factors and diminished capacity
334:
320:
101:
3471:
3469:
3467:
3294:. European Commission. pp. 215–224.
3157:Mental Disorder and Canadian Criminal Law
2295:
2293:
2250:
1328:National Institute for Health and Welfare
88:Learn how and when to remove this message
3184:
3182:
2631:Legal Information Institute: Federal Law
2069:Legal Information Institute: Federal Law
1710:President Reagan's assassination attempt
3842:American Journal of Forensic Psychiatry
3631:"The Insanity Defense Among the States"
3390:"The Insanity Defense Among the States"
1993:
1919:Mentally ill people in American prisons
1076:269H — Mental unfitness to stand trial
503:The defense is based on evaluations by
292:
235:
104:
2518:: CS1 maint: archived copy as title (
2511:
2102:Criminal Justice: A Brief Introduction
1848:. In 2006, the Supreme Court decided
1395:If the inculpability defense succeeds
728:In 2006, the US Supreme Court decided
2804:from the original on 13 January 2012.
2308:. vol.1, Edinburgh University Press.
1072:(c) is unable to control the conduct.
7:
3666:from the original on 21 October 2017
3400:from the original on 20 October 2017
2171:from the original on 2 February 2018
2005:
2003:
2001:
1999:
1997:
1893:, a documentary about a hospital in
1765:same manner as any other defendant.
1744:, 365 F.3d 644 (8th Cir. 2004), the
555:meaning "control" or "command", and
505:forensic mental health professionals
3719:Court: Insanity Defense Not a Right
3540:(5 ed), Routledge Cavendish, 2003,
2796:legislation.gov.uk (27 June 1991).
2637:from the original on 8 October 2011
2192:The New England Journal of Medicine
2075:from the original on 2 January 2012
1714:Insanity Defense Reform Act of 1984
1384:treatment. The court can opt for a
512:"—whether the defendant is insane.
3168:from the original on 10 March 2009
2815:Crown Prosecution Service (2011).
2010:Criminal Law - Cases and Materials
1536:Supreme Court of the United States
25:
3301:from the original on June 8, 2013
3207:from the original on June 8, 2013
2633:. Cornell University Law School.
2360:"Ford v. Wainwright 477 U.S. 399"
2233:Crotty, Homer D. (January 1924).
2071:. Cornell University Law School.
2014:Wolters Kluwer Law & Business
758:to adopt the insanity defense in
525:guilty but insane or mentally ill
3795:Northern Ireland Legal Quarterly
3460:from the original on 2018-06-05.
3250:from the original on 2013-04-13.
3130:"16. Defence of mental disorder"
2612:"On This Day: December 10, 1881"
2587:"On This Day: December 10, 1881"
959:Withdrawal or refusal of defense
517:not guilty by reason of insanity
301:
41:
3728:Washington Post, March 29, 1994
3609:from the original on 2007-12-29
3327:from the original on 2013-10-10
3164:, Law and Government Division,
2717:from the original on 2007-12-29
2045:from the original on 2016-10-07
1930:NCR: Not Criminally Responsible
1343:According to section 20 of the
1323:found guilty based on the facts
782:Incompetency and mental illness
703:rule that the insane cannot be
32:NCR: Not Criminally Responsible
3941:Evolution of the Insanity Plea
3855:Catholic University Law Review
3484:. Simon and Schuster. p.
1840:in these states. In 2001, the
1399:([i.e. if the crime cannot be
1:
3689:"The Advocacy Handbook - FAQ"
3226:Sparr, Landy F. (June 2009).
2920:Defence of mental impairment.
2821:Mentally Disordered Offenders
2703:"Federal Insanity Acquittees"
2670:Feix, J.; Wolber, G. (2007).
2625:Legal Information Institute.
2063:Legal Information Institute.
1897:housing the guilty-but-insane
1789:clear and convincing evidence
1775:preponderance of the evidence
1726:clear and convincing evidence
790:and criminal responsibility.
2886:"Mental Impairment Defences"
2863:Kenber, Billy (4 June 2015)
1272:Accused unfit to stand trial
1190:made while suffering from a
1042:In Australia there are nine
633:made no distinction between
590:In English law, the rule of
500:, are used more frequently.
3905:10.1177/0002716285477001003
2585:Kennedy, Robert C. (2001).
2099:Schmalleger, Frank (2001).
896:United States Supreme Court
882:who assassinated president
64:, discuss the issue on the
4002:
3832:Butler Committee. (1975).
3660:U.S. Department of Justice
3583: (D.C. Cir. 1972).
2940:386 (3 October 1961),
2274:Albert Christophe (1912).
2135:Shapiro, David L. (1991).
1581:
1010:
922:regarding the defendant's
659:Criminal Lunatics Act 1800
449:defense of mental disorder
386:or with the mitigation of
135:Mental disorder (Insanity)
29:
3836:, London: HMSO, Cmnd 6244
3558:Bernstein, Robin (2024).
3359:"Scottish Law Commission"
3113:[2000] NSWCCA 282
3089:[2010] NSWCCA 185
2380:Champion, Dean J (2005).
1901:Diminished responsibility
1722:preponderance of evidence
1652:irresistible impulse test
1627:Durham/New Hampshire test
695:477 U.S. 399 (1986), the
641:) and criminal behavior.
453:defense of mental illness
140:Diminished responsibility
3808:Bucknill, J. C. (1881).
3593:Nwokike, Jerome (2005).
3575:United States v. Brawner
3117:Court of Criminal Appeal
3097:Court of Criminal Appeal
3069:[2005] NSWSC 789
2800:. UK National Archives.
2701:Nwokike, Jerome (2005).
2564:repository.law.umich.edu
2439:Howe, Amy (2020-03-23).
1908:Frendak v. United States
1657:United States v. Brawner
1201:balance of probabilities
1171:Criminal Code provisions
991:Frendak v. United States
953:involuntary intoxication
926:violate the defendant's
854:argues that a defendant
714:Wainwright v. Greenfield
439:("guilty mind"). In the
3476:Starer, Daniel (1995).
3154:Pilon, Marilyn (2002),
3071: (11 August 2005),
2343:[1843] UKHL J16
2339:Daniel M'Naghten's case
1782:beyond reasonable doubt
1759:Guilty but mentally ill
1716:. Under this act, the
1635:Durham v. United States
1588:The guidelines for the
1443:to criminal liability.
1440:Criminal Code of Russia
1386:definite period of time
1283:Supreme Court of Canada
1230:Supreme Court of Canada
1220:Post-verdict conditions
1181:which states, in part:
828:Guilty but Mentally Ill
467:. It originated in the
352:mental disorder defense
3323:. Legislation.gov.uk.
3283:Silfverhielm, Helena.
3085:Woodbridge v The Queen
2744:. Wiley. p. 363.
2741:Handbook of Psychology
1943:Nulla poena sine culpa
1814:
1755:
1738:or other remedies. In
1694:capacity of insanity.
1676:American Law Institute
1483:
1409:diminished culpability
1332:involuntary commitment
1253:Constitution Act, 1867
1159:Woodbridge v The Queen
1013:Involuntary commitment
949:voluntary intoxication
388:imperfect self-defense
3423:, No. 18–6135 (2020).
3119:(NSW, Australia).
3075:(NSW, Australia).
2996:[1935] UKHL 1
2972:[1990] HCA 49
2934:[1961] UKHL 3
2239:California Law Review
1903:(or "Limited Sanity")
1890:By Reason of Insanity
1822:Montana Supreme Court
1736:writ of habeas corpus
1665:Model Penal Code test
1491:Brennan v HM Advocate
1403:excused because of a
1007:Psychiatric treatment
748:Fourteenth Amendments
709:competency evaluation
3662:. 19 February 2015.
3581:471 F.2d 969
3519:, SUNY Press, 1996,
3162:Government of Canada
3099:(NSW, Australia)
3025:[1933] HCA 1
2362:. Cornell Law School
2204:10.1056/NEJMcp074045
1914:Intoxication defence
1883:Archuleta v. Hedrick
1842:Nevada Supreme Court
1838:unfit to stand trial
1820:seeking review of a
1741:Archuleta v. Hedrick
1684:substantial capacity
1345:German criminal code
1226:Parliament of Canada
969:Colorado v. Connelly
876:Philip Barton Key II
354:, is an affirmative
350:, also known as the
70:create a new article
62:improve this article
3976:Forensic psychology
3971:Forensic psychiatry
3826:10.1093/brain/4.1.1
3800:Brown, M. (2007). "
3538:Modern criminal law
3346:Criminal Law Review
2895:. 2007. p. 228
2847:Rutgers Law Journal
2475:on 15 November 2017
2386:. Scarecrow Press.
2300:Walker, N. (1968).
2161:"non compos mentis"
1674:, published by the
1620:Auburn State Prison
1531:Foucha v. Louisiana
1292:preliminary hearing
578:(of a sound mind).
494:diminished capacity
372:psychiatric disease
366:, arguing that the
3739:"Kahler v. Kansas"
3724:2017-09-29 at the
2870:2015-06-05 at the
2591:The New York Times
2558:Smith & Hall.
1966:State v. Strasburg
1562:Due Process Clause
1558:U.S. Supreme Court
1487:HM Advocate v Kidd
1023:mental institution
920:mitigating factors
880:Charles J. Guiteau
852:temporary insanity
846:Temporary insanity
692:Ford v. Wainwright
647:English common law
482:Mitigating factors
3961:Criminal defenses
3869:The Baltimore Sun
3776:978-1-4200-6493-3
3200:. EU Commission.
2992:Woolmington v DPP
2865:A plea for sanity
2751:978-0-471-17669-5
2393:978-0-8108-5406-2
2105:. Prentice Hall.
2034:978-1-4548-0698-1
1937:Non compos mentis
1866:but the ultimate
1616:William H. Seward
1612:People v. Freeman
1522:standard of proof
1489:(1960) JC 61 and
1135:R v Ayoub (1984).
1131:Woolmington v DPP
916:jury instructions
884:James A. Garfield
861:crimes of passion
836:Guilty but Insane
592:non compos mentis
544:derives from the
542:Non compos mentis
537:Non compos mentis
531:Non compos mentis
474:People v. Serravo
447:, with the terms
344:
343:
106:Criminal defenses
98:
97:
90:
72:, as appropriate.
16:(Redirected from
3993:
3924:
3887:
3881:
3849:
3829:
3781:
3780:
3762:
3753:
3752:
3750:
3749:
3735:
3729:
3716:
3710:
3709:
3707:
3706:
3700:
3694:. Archived from
3693:
3685:
3676:
3675:
3673:
3671:
3652:
3646:
3645:
3643:
3641:
3627:
3618:
3617:
3615:
3614:
3590:
3584:
3578:
3570:
3564:
3563:
3555:
3549:
3534:
3528:
3513:
3507:
3506:
3504:
3502:
3483:
3473:
3462:
3461:
3433:
3424:
3420:Kahler v. Kansas
3416:
3410:
3409:
3407:
3405:
3386:
3380:
3379:
3377:
3376:
3370:
3363:
3355:
3349:
3342:
3336:
3335:
3333:
3332:
3317:
3311:
3310:
3308:
3306:
3300:
3289:
3280:
3274:
3273:
3271:
3269:
3258:
3252:
3251:
3223:
3217:
3216:
3214:
3212:
3206:
3195:
3186:
3177:
3176:
3175:
3173:
3151:
3145:
3144:
3142:
3141:
3132:. Archived from
3126:
3120:
3106:
3100:
3082:
3076:
3062:
3056:
3046:
3040:
3032:
3018:
3007:
2989:
2983:
2965:
2959:
2951:
2945:
2927:
2921:
2911:
2905:
2904:
2902:
2900:
2890:
2882:
2876:
2861:
2855:
2854:
2842:
2836:
2835:
2833:
2832:
2823:. Archived from
2812:
2806:
2805:
2793:
2787:
2786:
2784:
2783:
2768:
2762:
2761:
2759:
2758:
2736:Irving B. Weiner
2732:
2726:
2725:
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2647:
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2571:
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2549:
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2524:
2523:
2517:
2509:
2507:
2506:
2497:. Archived from
2491:
2485:
2484:
2482:
2480:
2471:. Archived from
2461:
2455:
2454:
2452:
2451:
2436:
2430:
2414:Kahler v. Kansas
2410:
2404:
2403:
2401:
2400:
2377:
2371:
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2187:
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2117:
2116:
2096:
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2084:
2082:
2080:
2060:
2054:
2053:
2051:
2050:
2012:, 7th ed. 2012,
2007:
1961:Settled insanity
1858:Kahler v. Kansas
1851:Clark v. Arizona
1672:Model Penal Code
1553:Kahler v. Kansas
928:Eighth Amendment
901:Penry v. Lynaugh
865:U.S. Congressman
820:expert witnesses
801:fitness to plead
739:Kahler v. Kansas
731:Clark v. Arizona
697:US Supreme Court
674:Daniel M'Naghten
612:colonial America
584:informed consent
490:partial defenses
465:criminal defense
459:employed. Being
412:gravely disabled
408:civil commitment
348:insanity defense
336:
329:
322:
306:
305:
220:
200:False confession
125:Actual innocence
102:
93:
86:
82:
79:
73:
45:
44:
37:
21:
18:Plea of insanity
4001:
4000:
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3990:
3981:Insanity in law
3951:
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3879:
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3790:
3788:Further reading
3785:
3784:
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3732:
3726:Wayback Machine
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2495:"Archived copy"
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2232:
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2198:(18): 1834–40.
2189:
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2062:
2061:
2057:
2048:
2046:
2037:
2022:Robert Weisberg
2008:
1995:
1990:
1985:
1971:Twinkie defense
1924:M'Naghten rules
1877:
1797:
1771:
1769:Burden of proof
1762:
1718:burden of proof
1702:
1678:, provides the
1668:
1630:
1596:Edward Drummond
1591:M'Naghten Rules
1586:
1576:burden of proof
1571:
1544:
1518:Burden of proof
1499:
1465:
1457:
1449:
1435:
1427:
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1366:
1357:
1341:
1309:
1300:
1274:
1222:
1192:mental disorder
1173:
1168:
1145:M'Naghten Rules
1141:M'Naghten Rules
1123:
1121:New South Wales
1096:
1056:South Australia
1052:
1050:South Australia
1040:
1035:
1021:treatment in a
1015:
1009:
1000:
961:
941:
911:Bigby v. Dretke
892:
848:
784:
772:burden of proof
768:
754:do not require
752:US Constitution
723:Miranda warning
670:M'Naghten Rules
651:trial by ordeal
600:
551:meaning "not",
533:
445:M'Naghten Rules
340:
300:
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216:
209:
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3930:External links
3928:
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3899:(477): 25–30.
3888:
3884:Project No. 69
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3189:Kramp, Peter.
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2682:(2): 172–182.
2662:
2657:"Intoxication"
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2245:(2): 105–123.
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2055:
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1953:
1950:People v. Drew
1946:
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1699:Federal courts
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1603:House of Lords
1585:
1583:M'Naghten test
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888:
868:Daniel Sickles
850:The notion of
847:
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804:
783:
780:
767:
764:
681:Prime Minister
663:James Hadfield
639:mental illness
619:Dorothy Talbye
610:. However, in
604:ancient Greece
599:
596:
532:
529:
510:ultimate issue
469:M'Naghten Rule
419:M'Naghten Rule
342:
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56:of the subject
54:worldwide view
49:
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3998:
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3925:at p. 30
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3712:
3701:on 2016-11-25
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3546:1-85941-807-4
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3371:on 2004-04-15
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3136:on 2015-12-10
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3091:, (2010) 208
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2974:, (1990) 171
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2958:(NSW) Part 4.
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2544:1-56662-448-7
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2026:Guyora Binder
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3966:Criminology
3871:op-ed page.
3820:(1): 1–26.
2817:"Procedure"
2641:19 December
2079:19 December
2018:John Kaplan
1846:due process
1807:here is no
1795:Controversy
1706:perpetrator
1648:Durham rule
1534:(1992) the
1397:only partly
1364:Netherlands
1335:sentences.
1235:R. v. Swain
1019:psychiatric
776:jury trials
766:Application
699:upheld the
684:Robert Peel
498:provocation
423:Durham rule
394:finding in
376:provocation
190:Provocation
3955:Categories
3748:2020-03-23
3743:SCOTUSblog
3705:2015-08-02
3670:20 October
3613:2007-10-11
3605:(1): 126.
3501:20 October
3495:0671887084
3404:20 October
3375:2014-06-09
3331:2014-06-09
3140:2015-12-09
3037:High Court
3029:(1933) 55
3021:R v Porter
2980:High Court
2853:: 397–430.
2831:2011-11-21
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2757:2008-01-01
2721:2007-10-19
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2479:2 February
2469:cps.gov.uk
2450:2020-03-23
2445:SCOTUSBlog
2417:, No.
2399:2007-10-06
2366:2007-10-04
2320:, pp15–16.
2283:2007-11-14
2175:2 February
2049:2018-05-29
1988:References
1818:certiorari
1809:definitive
1704:After the
1692:volitional
1644:product of
1569:Definition
1512:Definition
1401:completely
1390:indefinite
1155:actus reus
1150:R v Porter
1011:See also:
904:) and the
788:competency
719:prosecutor
701:common law
631:common law
616:delusional
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205:Entrapment
155:Automatism
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3264:. Lovdata
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3049:R v Ayoub
2918:s 20
1688:cognitive
1044:law units
1038:Australia
1033:Worldwide
886:in 1881.
643:Edward II
492:such as
368:defendant
228:procedure
185:Necessity
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3913:11616555
3862:Crim. LR
3848:: 17–32.
3722:Archived
3664:Archived
3607:Archived
3458:Archived
3454:20784052
3398:Archived
3325:Archived
3305:July 16,
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2868:Archived
2802:Archived
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2635:Archived
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2514:cite web
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2073:Archived
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1875:See also
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1680:ALI rule
1660:(1972).
1463:Scotland
1214:3 S.C.R.
1188:omission
1100:Victoria
1094:Victoria
975:writ of
872:New York
840:Michigan
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760:criminal
746:and the
705:executed
645:, under
635:insanity
564:singular
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431:ALI rule
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284:Evidence
264:Property
254:Contract
249:Criminal
218:See also
130:Immunity
60:You may
3635:FindLaw
3548:, p.352
3394:FindLaw
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1307:Finland
1298:Denmark
984:In the
834:) or a
750:of the
678:British
598:History
400:estates
356:defense
293:Portals
279:Estates
170:Mistake
165:Consent
150:Infancy
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