Word Pronunciation & Dictionary

mcnaughton rules

Word Rarity Very rare

Frequency: Zipf frequency 2.40 in modern English

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Meaning

noun

A test of criminal insanity by which "it must be clearly proved that, 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, if he did know it, that he did not know he was doing what was wrong".

M'Naghten rule (alternative)

What does mcnaughton rules mean?: A test of criminal insanity by which "it must be clearly proved that, 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, if he did know it, that he did not know he was doing what was wrong".
Where does mcnaughton rules come from?: 1843, from the trial of Daniel McNaughton, who shot and murdered Edward Drummond, the Private Secretary to the then British Prime Minister Sir Robert Peel.

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