Friendly witness Law and Legal Definition
Friendly witness is a witness whom a party has called to testify, and such witness cannot be cross examined by the party. If the witness testifies against the party who had called him or her, or testifies in a way that badly affects the case of the party who had called him or her, that party can ask the judge to declare him or her a "hostile witness." In such circumstance, the party can begin to cross-examine the witness with leading questions.