Quimbee logo
DMCA.com Protection Status

M'Naghten Rule

M'Naghten Rule

Definition

A rule stating that a defendant is not guilty by reason of insanity if, as a result of a mental disease or defect, he either (1) did not know the nature or quality of the criminal act or (2) if he did know the act's nature and quality, he did not know that what he was doing was wrong.

Get full access FREE

With a 7-Day free trial membership
Here's why 618,000 law students have relied on our key terms:
  • A complete online legal dictionary of law terms and legal definitions
  • Over 6,900 key terms written in plain English to help you not only understand the law but master it
  • The premier online law dictionary built specifically for law students
  • Easy access in class or on the go, accessible both online and through the Quimbee mobile app
  • Reliable - written by legal professors and practitioners
  • Get instant access to all related rules of law to any specific key term with a Quimbee Study Aid plan

Get full access FREE

With a 7-Day free trial membership