Law Dictionary

Mansfield rule

noun, often cap R Mans·field rule \ˈmanz-ˌfēld-\

Legal Definition of Mansfield rule

  1. :  a rule that a juror's affidavit or testimony as to juror misconduct during deliberations may not be used to impeach the verdict

Origin and Etymology of mansfield rule

after William Murray, first Earl of Mansfield (1705–1793), British jurist who set forth the rule

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to cast off or become cast off

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