Hostile witness, a witness called by a party, whose evidence goes unexpectedly against that party and who can then be cross-examined by his own side as if he were given evidence for the other side.

• 一方叫的证人，该证人的证据意外地对该方不利。该证人有可能被自己一方反诘问，似乎他在为另一方提供证据。