state's evidence

劍橋詞典

evidence from someone who has been accused of committing a crime , given against the people who were accused with them, in order to have their own punishment reduced
刑事被告曏法院提供的對同案犯不利的証據(jù)（女王在位時則稱爲(wèi)Queen's evidence）
比較
Queen's evidence 返回 state's evidence