相关规则
China
Practice Relating to Rule 100. Fair Trial Guarantees
Section G. Examination of witnesses
China’s Criminal Procedure Law (1979), as amended in 1996, states:
The testimony of a witness may be used as a basis in deciding a case only after the witness has been questioned and cross-examined in the courtroom by both sides, that is, the public prosecutor and victim as well as the defendant and defenders, and after the testimonies of the witnesses on all sides have been heard and verified. If a court discovers through investigation that a witness has intentionally given false testimony or concealed criminal evidence, it shall handle the matter in accordance with law. 
China, Criminal Procedure Law, 1979, as amended in 1996, Article 47.