anatomy of insanity defense

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CJ 400 Anatomy of a Murder REVIEW AND SUMMARY OF INSANITY DEFENSE The term ‘insanity’ has two distinct definitions in the fields of law and medicine. The legal term is defined as, “…a mental illness of such a severe nature that a person cannot distinguish fantasy from reality, cannot conduct her/his affairs due to psychosis, or is subject to uncontrollable impulsive behavior.” (The People's Law Dictionary) In medicine, the term insanity is no longer used. Insanity as a medical term was replaced with mental illness which can be defined as, “Any of various disorders characterized chiefly by abnormal behavior or an inability to function socially, including diseases of the mind and personality and certain diseases of the brain.” (Roget's II 1995) Taking into consideration the very vague difference between the two definitions, it is important to note that the legal definition adds that the term insanity used in the court room is in no way a medical diagnosis for mental illness. One definition of insanity follows the other. After medical professionals deem a person mentally ill, the court room can then proceed to conclude an insanity defense. Both understand that claiming a mental illness can be sufficient enough to somewhat relieve the burden of guilt in a court of law. The diagnosis of mental illness does not automatically deem innocence and the person usually becomes institutionalized, therefore treated, but not punished for their uncontrollable actions. In a courtroom, the idea an insanity defense created a right-wrong test which was established with the M’Naghten Rule in the case Queen v. M'Naghten (1843). This test was applied when deciding if a person, at the time of the committing of the act, was ‘laboring 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, if he knew

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