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Latin for the King, in whose name public criminal prosecutions are usually brought. Usually abbreviated to R in case citations. When appearing as the respondent to a criminal appeal, may be written out in full as The King. As a party, referred to as The Crown.

Claims for judicial review in the civil courts are also brought in the name of the Crown, “on the application of” the claimant. (Formerly, they were brought as applications for prerogative remedies, such as mandamus and certiorari, “ex parte” the applicant.)