Audio-visual materials include audio tapes, video tapes, cinematographic films or sounds, moving images and graphics stored in computer-related equipment.

China's criminal procedure law stipulates eight kinds of evidence: physical evidence; Written evidence; Witness testimony; The victim's statement; Confessions and excuses of criminal suspects and defendants; Appraisal opinions; Investigation, inspection and identification of investigation experimental records; Audio-visual materials, electronic data.

China's civil procedure law divides evidence into documentary evidence, material evidence, audio-visual materials, witness testimony, electronic data, statements of parties, expert opinions and records of inspection.

2065438+ A judicial interpretation issued by the Supreme People's Court on February 4, 2005 shows that information formed or stored in electronic media such as online chat records, blogs, micro-blogs, mobile phone short messages, electronic signatures and domain names can be used as evidence in civil cases.