Derek Bentley (30 June 1933 – 28 January 1953) was an English man who was hanged for the murder of a policeman, whose death occurred in the course of a burglary attempt.
At the time, Christopher Craig, then aged 16, a friend and accomplice of Bentley, was accused of the murder.
Bentley was convicted as a party to murder, by the English law principle of common purpose, "joint enterprise".
The jury at the trial found Bentley guilty based on the prosecution's interpretation of the ambiguous phrase "Let him have it" (Bentley's alleged exhortation to Craig), after the judge, Lord Chief Justice Goddard, had described Bentley as "mentally aiding the murder of Police Constable Sidney Miles".