Legal analysis: 1. Generally, there are two types of storage for alarms. 2. One is computer storage, which is the computer storage of the 110 command center. Generally, it is half a year. 3. One is the handwritten 110 police registration held by the 110 police. If the 110 police does not solve the problem on the spot but takes the person to the police station, the police reception record of the police station will be kept permanently.

Legal basis: "Regulations on the Procedures of Public Security Organs for Handling Administrative Cases"

Article 52: Public security organs conduct inquiries, identifications, inspections, inspections, and implement administrative coercive measures to investigate and collect evidence When working, there must be no less than two people's police officers, and they must indicate their law enforcement status. The work of receiving a case report, registering a case, accepting evidence, collecting information, mediating, and delivering documents can be carried out by a people's policeman leading police auxiliary personnel, but the entire process should be audio-recorded and videotaped.

Article 263 Provincial public security organs shall establish and continuously improve a unified law enforcement and case handling information system. The case-handling department shall, in accordance with relevant regulations, enter the acceptance, investigation and evidence collection, enforcement measures and handling of administrative cases, as well as relevant documents and materials into the law enforcement case-handling information system, and conduct online review and approval. Public security organs can use electronic signatures and electronic fingerprint printing technologies to produce electronic transcripts and other materials, and can use electronic seals to produce legal documents. The public security organs shall simultaneously record and videotape the process of electronic signatures and electronic fingerprints of the parties involved in the case.