2. Article 211 When inspecting the site, the site shall be photographed, a map of the site shall be drawn, and a record shall be made, which shall be signed by the participants and witnesses. The scene of a major case shall be videotaped.
3. Paragraph 4 of Article 2 12: Inspection records shall be made and signed by the investigators, inspectors, inspected personnel and witnesses who participated in the inspection. If the inspected refuses to sign, the investigator shall indicate it in the record.
4. Article 217 With the approval of the person in charge of the public security organ at or above the county level, investigators may search the body, personal belongings, residence and other relevant places of criminal suspects and people who may hide criminals or criminal evidence.
5. Paragraph 2 of Article 220: The public security organ may require the relevant units and individuals to hand over physical evidence, documentary evidence, audio-visual materials and other evidence that can prove the criminal suspect's guilt or innocence. If the search is obstructed, the investigators can forcibly search.
6. Article 221 A record shall be made during a search, which shall be signed by the investigator and the searched person or his family members, neighbors or other witnesses.
If the person being searched refuses to sign, or the person being searched is at large, and his family refuses to sign or is not present, the investigators shall indicate it in the record.
7. Article 222 All kinds of property and documents found in investigation activities that can prove the criminal suspect's guilt or innocence shall be sealed up and detained; However, property and documents irrelevant to the case shall not be sealed up or detained.
If the holder refuses to hand over the property and documents that should be sealed up or detained, the public security organ may forcibly seal up or detain them.
8. Article 224 The number of investigators involved in sealing up or detaining shall not be less than two, and the relevant legal documents stipulated in Article 223 of these Provisions shall be presented.
When sealing up or detaining, a written record shall be made, which shall be signed by the investigator, the holder and the witness. If the holder cannot be determined or the holder refuses to sign, the investigator shall indicate it in the record.
9. Article 239, paragraph 1: In order to find out the facts of a case and solve some specialized problems in a case, a person with specialized knowledge shall be appointed and hired for appraisal.
10 article 242nd an appraiser shall independently conduct an appraisal by using scientific methods in accordance with the appraisal rules. After the appraisal, it shall issue an appraisal opinion, sign the appraisal opinion, and attach the qualification certificate or other supporting documents of the appraisal institution and appraiser.
If more than one person participates in the appraisal, if the appraisers have different opinions, it shall be indicated.
1 1 article 249 in order to find out the case, investigators may, when necessary, let victims, witnesses and criminal suspects identify articles, documents, bodies, places or criminal suspects related to the crime.
12 article 253 a record of the identification process and results shall be made and signed by the investigators, witnesses and witnesses. When necessary, the identification process shall be recorded or videotaped.