Legal basis:
"Regulations on Supervision of Public Security Organs" Article 2 The Supervision Committee of the Ministry of Public Security leads the supervision work of public security organs throughout the country, and is responsible for supervising the units directly under the Ministry of Public Security, public security organs at lower levels and their people's police to perform their duties, exercise their functions and powers and observe discipline according to law, and be responsible to the Minister of Public Security. The Supervision Bureau of the Ministry of Public Security undertakes the functions of the Committee Office of the Supervision Bureau of the Ministry of Public Security.
The supervisory organs of public security organs of local people's governments at or above the county level are responsible for supervising the performance of duties, the exercise of functions and powers, and the observance of discipline by subordinate units of public security organs at the same level, public security organs at lower levels and their people's police, and are responsible to the supervisory organs of public security organs at the next higher level and the administrative heads of public security organs at the same level.
The supervisory organ of the public security organ of the local people's government at or above the county level is a law enforcement service institution, which is composed of full-time personnel and organized by teams.