Editing M'Naghten’s Case

{{Infobox Case Brief
|court=House of Lords
|citation=0 Cl. & F. 200, 8 Eng. Rep. 718
|date=1843
|subject=Criminal Procedure
|other_subjects=Criminal Law
|appealed_from=Old Bailey
|facts=*'''Daniel M'Naghten''' (1813 – May 1865) wanted to assassinate the British prime minister.
*In January 1843, M'Naghten shot & killed Edward Drummond, the prime minister's secretary.
*Physicians found M'Naghten to be totally insane.
*M'Naghten's acquittal caused public furor.
|procedural_history=*M'Naghten pled "not guilty" to Drummond's murder.
*M'Naghten announced that his intention was to shoot the Prime Minister, [https://www.bbc.co.uk/history/historic_figures/peel_sir_robert.shtml Robert Peel].
*The jury at the Old Bailey found M'Naghten "not guilty" on grounds of insanity.
*The judges were called before the [https://www.parliament.uk/business/lords/ House of Lords] to explain their reasoning.
|issues=If as a result of mental disease, the defendant didn't know or appreciate the nature or quality of the criminal act he committed, or didn't know it was wrong, can he be found not guilty by reason of insanity?
|holding=House of Lords: Yes; a defendant will be found "not guilty" by "reason of insanity" if, as a result of mental disease, he didn't know or appreciate the nature or quality of the criminal act he committed, or didn't know it was wrong.
|case_text_links={{Infobox Case Brief/Case Text Link
|link=https://www.quimbee.com/cases/m-naghten-s-case
|source_type=Video summary
|case_text_source=Quimbee
}}
}}