To implement the principles, policies, laws and regulations related to public security work, study and draft policies and measures related to public security management, and organize implementation, supervision and inspection after deliberation and approval. Wei 1, protecting the political stability of the county, is responsible for the investigation and control of hostile forces, reactionary societies and reactionary cults at home and abroad and the basic investigation. 2, responsible for the county all kinds of criminal cases, economic cases, public security cases to detect and investigate the work. 3, responsible for social security, household registration, identity cards and guns, ammunition, controlled knives and inflammable, explosive, toxic, radioactive and other dangerous goods management, organize and coordinate the handling of major public security incidents and emergencies. 4, organize the implementation of pre-trial work and detention center, detention center, detention center management. 5, responsible for guiding and urging organs, organizations, enterprises and institutions and key construction projects to do a good job in security.