turn Queen's evidence
idiom
British, law
: to give information (such as the names of other criminals) to the court in order to reduce one's own punishment when one has been charged with a crime
—used when Britain is ruled by a queen
Cite this Entry
“Turn Queen's evidence.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/turn%20Queen%27s%20evidence. Accessed 31 Oct. 2025.
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