plea of insanity

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Noun1.plea of insanity - (criminal law) a plea in which the defendant claims innocence due to mental incompetence at the time
criminal law - the body of law dealing with crimes and their punishment
plea - (law) a defendant's answer by a factual matter (as distinguished from a demurrer)
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References in periodicals archive ?
Even more puzzling is Breivik's on-and-off plea of insanity. But the fact that his agenda was to keep immigrants out of Norway is painfully clear.
David was soon well enough to be committed to the Manchester Assizes for trial and on December 2 his plea of insanity was rejected by doctors who examined him, leaving the jury with no option but to return a guilty verdict.
On December 8, 1948 at her trial at Manchester Assize Court, she never took the witness stand and a plea of insanity was rejected.
The plea of insanity was rejected as 'fantasy' in 2016 and now again in 2018.
He first claimed not guilty on plea of insanity, but later rescinded the claim and admitted to second degree murder.
Blood-soaked Philip's clothes were shown off in court; then aged 16, he gave a plea of insanity but admitted murder
The man's audacity is unfathomable; we really worry if he later invokes a plea of insanity as a defense in court.
Terming the crime as "cruel, diabolical and revolting" and the one that "shook the conscience of the society," the high court rejected Mane's plea of insanity and upheld the death penalty awarded to him by a sessions court.
Newell put forward a plea of insanity. She was onvicted on a majority verdict but he jury unanimously oted for mercy.
This year's regional competition involved a criminal murder case in which the defendant offered a plea of insanity. Participating teams prepared for and argued both sides of the case.
Holmes' attorneys are expected to enter a plea of insanity at his trial.