How can a criminal case be closed?

Jurisprudence analysis: A criminal case enters the investigation stage after it is put on file for investigation by the public security organ. If the investigation organ decides not to put on file or cancel the case, it will be regarded as completely closed. After accepting a case, the public security organ shall, after examination, consider that there are criminal facts that need to be investigated for criminal responsibility and belong to its own jurisdiction, and shall file a case with the approval of the person in charge of the public security organ at or above the county level.

Legal basis: "Provisions on the Procedures of Public Security Organs in Handling Criminal Cases" Article 187 If a criminal suspect needs to withdraw the case or terminate the investigation, the case-handling department shall prepare a report on the withdrawal of the case or termination of the investigation and report it to the person in charge of the public security organ at or above the county level for approval.

if the public security organ decides to dismiss the case or terminate the investigation of the criminal suspect, if the original criminal suspect is in custody, it shall immediately release him and issue a release certificate. If the original criminal suspect is arrested, it shall notify the people's procuratorate that originally approved the arrest. If other compulsory measures are taken against the original criminal suspect, the compulsory measures shall be lifted immediately; If administrative treatment is needed, it shall be handled according to law or transferred to the relevant authorities for handling.

the seized or detained property, its fruits, vouchers and frozen property shall be released from seizure, seizure and freezing, and returned or notified to the parties concerned in time, except for being dealt with separately in accordance with laws and relevant regulations.