Article 106 of the Procedures for Handling Criminal Cases by Public Security Organs shall make an application for residential surveillance of a criminal suspect, stating the reasons for residential surveillance, the ways to adopt residential surveillance and the regulations to be observed, and make a decision on residential surveillance with the approval of the person in charge of the public security organ at or above the county level. The decision on residential surveillance shall be read to the criminal suspect, who shall sign and fingerprint it.

Article 113 Where a public security organ decides to monitor residence, it shall be executed by the police station in the place where the residence is monitored or the designated place of residence, and the case-handling department may assist in the execution. When necessary, it can also be executed by the case-handling department, with the assistance of the police station or other departments.

According to the law of our country, when monitoring and other technical investigation methods are implemented, it must be a criminal case that has been filed by the public security organ.

After filing a case, for criminal cases that seriously endanger social stability, such as crimes endangering national security, terrorist activities, organizing leaders to participate in organized crimes of underworld nature, and major drug crimes, in order to obtain some clues, according to the needs of case investigation, technical investigation measures can be taken, such as monitoring and interception.

In addition to the public security organs have the right to implement monitoring and other technical investigation means, after the case directly handled by the people's procuratorate is put on file, if the personal rights of citizens are seriously violated by taking advantage of their powers, technical investigation measures can be taken and handed over to the relevant authorities for execution in accordance with regulations.