What information does the police collect through mobile phones?

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. Five extractions: Personnel 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.

In order to maintain public security and order, the people's police of the public security organ may interrogate and inspect persons suspected of violating the law and committing crimes on the spot upon presentation of corresponding certificates; after interrogation and inspection, if any of the following circumstances are found, they may Bring the person to the public security organ, and with the approval of the public security organ, continue to interrogate him; the person being interrogated shall not be detained for more than twenty-four hours from the time he is brought to the public security organ. Under special circumstances, with the approval of the public security organ at or above the county level, With the approval of the agency, it can be extended to forty-eight hours, and a record of the interrogation should be kept.

If it is approved to continue the interrogation, his family members or his unit should be notified immediately. If the continuation of the cross-examination is not approved, the person being cross-examined shall be released immediately. After continued interrogation, if the public security organ believes that it is necessary to take detention or other compulsory measures against the person being interrogated in accordance with the law, it shall make a decision within the period specified in the preceding paragraph; if the above-mentioned decision cannot be made within the period specified in the preceding paragraph, the person under interrogation shall be released immediately.

Legal Basis

"Criminal Procedure Law of the People's Republic of China"

Article 148: After filing a case, the public security organ shall not In cases of national security crimes, terrorist activities, organized crimes of a mafia nature, major drug crimes, or other criminal cases that seriously endanger society, technical investigation measures may be taken after strict approval procedures based on the needs of criminal investigation. After the People's Procuratorate has filed a case, it may adopt technical investigation measures after strict approval procedures based on the needs of investigating crimes and submit them to the People's Procuratorate in accordance with regulations for major criminal cases of corruption and bribery, as well as major criminal cases that seriously infringe upon the personal rights of citizens. Implementation by relevant authorities.

To pursue fugitive criminal suspects and defendants who are wanted or have been approved or decided to arrest, upon approval, technical investigation measures necessary for the pursuit can be taken.

Article 149: The approval decision shall determine the types and applicable objects of technical investigation measures based on the needs of investigating crimes. The approval decision is valid within three months from the date of issuance. If there is no need to continue to take technical investigation measures, they should be lifted in time; for complex and difficult cases, if it is still necessary to continue to take technical investigation measures after the expiration of the time limit, the validity period can be extended with approval, and each time shall not exceed three months.