Definition of turn King's or Queen's or US state's evidence in English:

turn King's (or Queen's or US state's) evidence

Law (Of a criminal) give information in court against one’s partners in order to receive a less severe punishment: in exchange for not being prosecuted he agreed to turn Queen’s evidence
More example sentences
  • Two of his codefendants confessed to their parts in the robbery, and one codefendant turned state's evidence in return for a reduced sentence.
  • Some read it as a cautionary tale for anyone contemplating turning state's evidence in antitrust trials.
  • He is currently serving seven years after admitting his role and has told the court he would have received 28 years if he had not turned Queen's evidence.
See parent entry: evidence

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