Daniel M'Naghten

Standard Name: M'Naghten, Daniel

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20 January 1843: Daniel M'Naghten shot and mortally wounded...

National or international item

20 January 1843

Daniel M'Naghten shot and mortally wounded the private secretary of Sir Robert Peel , the Prime Minister: his trial for murder changed British legislation on pleas of insanity.
Walker, Nigel. Crime and Insanity in England. Edinburgh University Press, 1968.
90-2

After March 1843: Following a controversial trial, judges for...

National or international item

After March 1843

Following a controversial trial, judges for the House of Lords formalized the M'Naghten Rules, aimed at regularizing legal procedure for prosecuting defendants showing no criminal intent by virtue of defect of reason.
Smith, Roger. “The Boundary Between Insanity and Criminal Responsibility in Nineteenth-Century England”. Madhouses, Mad-Doctors, and Madmen: The Social History of Psychiatry in the Victorian Era, edited by Andrew Scull, University of Pennsylvania Press, 1981, pp. 363-84.
366-7
Walker, Nigel. Crime and Insanity in England. Edinburgh University Press, 1968.
96

3 March 1843: The trial opened of Daniel M'Naghten for...

Building item

3 March 1843

The trial opened of Daniel M'Naghten for the murder of Sir Robert Peel 's private secretary; his counsel pleaded insanity and consequent lack of self-control.
Walker, Nigel. Crime and Insanity in England. Edinburgh University Press, 1968.
92, 94-5

Early 1843 to 1907: In the seventy-three years following the...

National or international item

Early 1843 to 1907

In the seventy-three years following the establishment of the M'Naghten Rules, the number of accused murderers acquitted by the insanity plea, or found unfit to plead, rose from 10% of all cases to 31%.
Walker, Nigel. Crime and Insanity in England. Edinburgh University Press, 1968.
86

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