Legal Definition and Related Resources of Mcnaghten’s Rule

A rule in R v McNaghten, (1843) 4 St.Pr. (N.S.) 847, 8 E.R. 718 and consists of the answers given by the house of Lords to a series of questions put to them relating to insanity as a defense to a criminal charge . The substance of the rule is that in order for insanity to be a ground of defense, it must be proved that, at the time of committing the act, the person accused 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 did know it, that he did not know that he was doing what was wrong .

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Mcnaghten’s Rule in Historical Law

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Mentioned in these terms

Insanity, Legal Insanity.