Judging from the sources of evidence, it is also illegal for the transcripts of criminal cases to be used as evidence in civil proceedings. Criminal investigation is a severe measure taken by state power organs to investigate the criminal responsibility of criminal suspects, and it is the most severe restriction on citizens' personal freedom. In strict accordance with legal procedures, the materials formed in the investigation process should be kept strictly confidential, kept confidential before the court's decision, and must be used in criminal cases. The Criminal Procedure Law stipulates that those who have the right to copy the investigation record are the competent authorities and defense lawyers, and outsiders have no right to copy it. If outsiders hold evidence, its source should be illegal. According to the exclusionary rule of illegal evidence, the evidence cannot be used as evidence and should be excluded. The Provisions on Several Issues Concerning Lawyers' Criminal Defense (Draft for Comment) also has some directional expositions: defense lawyers should keep confidential the case information they have learned after consulting according to law, and properly keep the extracted and copied case files and materials, which shall not be used for other purposes than the defense of this case.

Legal objectivity:

The evidence in Article 63 of the Civil Procedure Law of People's Republic of China (PRC) includes: (1) the statement of the parties; (2) Documentary evidence; (3) Physical evidence; (4) Audio-visual materials; (5) Electronic data; (6) Testimony of witnesses; (7) Appraisal opinions; (8) Records of the inquest. Evidence must be verified before it can be used as a basis for ascertaining facts.