What does the police station mean by collecting mobile phone information? According to the relevant provisions on standardized information collection, the public security organ needs to collect information and other normal police work according to the relevant provisions on standardized information collection, which will not affect the future work and life. It belongs to personnel information extraction, which is used to enrich the personnel information database and find clues for solving cases. 5. Extraction: 1. Identification of personnel (verification of household registration data) 2. Fingerprint extraction 3. Mobile phone information extraction 4. DNA collection (saliva extraction, blood extraction, etc.) 5. Identification of vehicles as suspects. (Urine test is required for those suspected of drug abuse) Five extraction is mainly for those who can not show their ID cards or track during patrolling, providing useful clues for cracking cases within their jurisdiction. According to Article 15 of the Law of the People's Republic of China on Resident Identity Cards, when performing their duties according to law, the people's police may examine their resident identity cards by presenting their law enforcement certificates in any of the following circumstances: (1) it is necessary to ascertain the identity of persons suspected of committing crimes; （2） It is necessary to find out the identity of relevant personnel when implementing on-site control according to law; （3） When an emergency seriously endangers public security occurs, it is necessary to find out the identity of the relevant personnel on the scene; （4） It is necessary to ascertain the identity of the persons concerned at railway stations, long-distance bus stations, ports, docks, airports or places designated by the people's governments of cities divided into districts during major events; （5） Other circumstances required by law to identify. Under any of the circumstances listed in the preceding paragraph, if the people's police are refused to examine their resident identity cards, measures shall be taken to deal with them according to the different circumstances in accordance with the provisions of relevant laws. No organization or individual may detain its resident identity card. However, the circumstances under which the public security organ executes the compulsory measures of residential surveillance in accordance with the Criminal Procedure Law of the People's Republic of China are excluded. The above is the content about what the police station collects mobile phone information for you, which is sorted out by the lawyer. I hope it will be helpful.