Public security investigation means

Legal analysis: public security investigation means: (1) technical investigation means: 1, interrogation of criminal suspects; 2. Interviewing witnesses and victims; 3. An inquest and inspection; 4. search; 5. Seizure of physical evidence and documentary evidence; 6. Identification; 7. Identification; 8. Wanted (2) Technical investigation measures. It usually includes electronic monitoring, telephone monitoring, electronic monitoring, secret photography, video recording, mail inspection and other secret technical means.

Legal basis: Article 152 of the Criminal Procedure Law of People's Republic of China (PRC) adopts technical investigation measures, which must be implemented in strict accordance with the approved types, applicable objects and time limit. Investigators should keep confidential the state secrets, business secrets and personal privacy they know in the process of taking technical investigation measures; Materials irrelevant to the case obtained through technical investigation must be destroyed in time. The materials obtained by technical investigation measures can only be used for investigation, prosecution and trial of crimes, and shall not be used for other purposes. The public security organs shall take technical investigation measures according to law, and the relevant units and individuals shall cooperate with them and keep the relevant information confidential.