Trace evidence how to identify how to protect the scene of trace physical evidence

Legal analysis: trace evidence identified according to the performance of the blood on the murder weapon, the performance of handprints, the performance of the murder weapon belongs to the performance or the performance of the murder weapon at the scene of the location of the relationship to the specific identification. Protection of trace evidence at the scene of the method is: 1. the use of marking method of protection; 2. the use of recording method of protection; 3. the use of covering method of protection.

Legal basis: "the Chinese people's **** and the State Criminal Procedure Law" Article 50 can be used to prove the facts of the case of material, are evidence. Evidence includes: physical evidence; documentary evidence; witness testimony; victim statements; criminal suspects, defendants confession and defense; appraisal opinions; investigation, inspection, identification, investigation and experimental transcripts; audio-visual materials, electronic data. Evidence must be verified as true in order to serve as the basis for the case.