the Ministry of public security renamed the assigned working group as the stationed supervision team, and established the working system of the stationed supervision team. The purpose is to "form a long-term working mechanism by sending cadres to the grassroots level in the Ministry of Public Security, and < P > give full play to the function of sending working groups to carry out supervision and inspection and promote the implementation of work." To this end, all levels of public security departments have set up "supervision offices" to promote work and carry out inspection and supervision.