The public security bureau is an administrative organ. According to the law, it implements the chief responsibility system, that is to say, the director can ask all the work, make all the decisions and ask his subordinates to implement them.
Deputy directors generally handle matters in charge, such as criminal investigation, public security management, and rule of law construction. Deputy bureau level is deputy county level, deputy bureau level and deputy prefecture level. The political commissar is at the same level as the director, the director is the administrative person in charge, and the political commissar is the person in charge of party affairs. The director and political commissar are at the same level, both at the county level, bureau level and prefecture level.
For example, the public security bureau of a prefecture-level city is generally at the level, and the director is generally served by the deputy mayor. Because of the important functions of the Public Security Bureau, many deputy directors in charge are at the level, and the executive deputy director is the first deputy director, usually at the level.