Main hall bureau level. The director of the Counter-Terrorism Bureau of the Ministry of Public Security is at the bureau level, and different levels of public security directors have different levels. There are several levels of public security directors: First, the directors of the bureaus directly under the Ministry of Public Security (such as the Anti-terrorism Criminal Investigation Bureau of the Ministry of Public Security) are bureau-level; Public security bureaus of municipalities directly under the Central Government (such as Beijing Public Security Bureau) are bureau-level, but their directors are assigned to deputy provincial and ministerial levels.