What is the use of extracting mobile phone information?

SMS, call records, phone book, etc.

Information collection is the extraction of personnel information, which is used to enrich the personnel information database and find clues for solving crimes. 5. Extraction:

Personal identity confirmation (verification of household registration information).

Fingerprint extraction.

Mobile phone information extraction.

DNA collection (including saliva extraction, blood extraction, etc.).

There is a vehicle investigation to see if it is a suspect vehicle. (Those suspected of taking drugs must undergo a urine test).

The five extractions mainly focus on people found during patrols who cannot produce their ID cards or whose whereabouts are known, and provide useful clues for solving cases within the jurisdiction.

The person being extracted will not leave a criminal record (he has not done anything illegal), and can go home after being cleared of suspicion. It is a detailed registration, so there is no need to worry. In addition, the police station has a confidentiality obligation to the persons being extracted, so you can rest assured about this.