Legal basis: Article 48 of the Criminal Procedure Law of People's Republic of China (PRC), all materials that can be used to prove the facts of a case are evidence.
Evidence includes:
(1) Physical evidence;
(2) Documentary evidence;
(3) Testimony of witnesses;
(4) the victim's statement;
(5) confessions and excuses of criminal suspects and defendants; (6) Appraisal opinions;
(7) Records of inquests, inspections, appraisals, investigations and experiments;
(8) Audio-visual materials and electronic data.
The evidence must be verified before it can be used as the basis for finalizing the case. "
Article 144 In order to find out the facts of a case, when it is necessary to solve specialized problems in the case, a person with specialized knowledge shall be appointed to make an appraisal.
Article 145 After making an appraisal, the appraiser shall write an appraisal opinion. If the signature appraiser intentionally makes a false appraisal, he shall bear legal responsibility.
Article 146 The investigation organ shall inform the criminal suspect and the victim of the expert opinions used as evidence. If a criminal suspect or victim applies, he may make supplementary appraisal or re-appraisal.
Article 147 The time for psychiatric appraisal of a criminal suspect is not included in the time limit for handling a case. "