Can the Public Security Bureau endlessly apply for an extension of investigation when handling criminal cases?

After receiving the report, the police station will conduct a preliminary examination of the report materials and conduct investigation and evidence collection according to the specific circumstances of the case after filing the case. There is no time limit for the investigation here.

Where a criminal suspect is detained, the investigation period shall generally not exceed two months, and may be extended upon approval in special circumstances.

General duration of investigation and detention Article 154 of the Criminal Procedure Law stipulates that the duration of investigation and detention after the arrest of a criminal suspect shall not exceed two months. If the criminal suspect has been detained before arrest, the detention period shall not be included in the investigation detention period.

If the case is complicated and cannot be concluded at the expiration of the time limit, it may be extended for 0 months with the approval of the people's procuratorate at the next higher level.

If the investigation cannot be concluded at the expiration of the time limit, it may be extended for two months with the approval or decision of the people's procuratorate of the province, autonomous region or municipality directly under the Central Government.