Tangshan Public Security Bureau undertakes the duties of public security organs: preventing, stopping and investigating illegal and criminal activities; Preventing and combating terrorist activities; Maintain public order and stop acts that endanger public order; Manage traffic, fire fighting and dangerous goods; Manage household registration, resident identity cards, nationality, entry and exit, and foreigners' residence and travel in China; Maintaining public order in the border areas; Defend the specific personnel and important places and facilities stipulated by the state; Manage assemblies, processions and demonstrations; To supervise and manage the security of public information networks; To guide and supervise the public security work of state organs, social organizations, enterprises and key construction projects; To guide the work of mass public security organizations such as social security committees. Public security work of mass public security organizations such as committees.
The business of the Public Security Bureau can be simply divided into: criminal, public security, traffic management, fire control, entry and exit, population management, domestic security, etc. The public security bureau is usually divided into: several organs' business departments (such as political department, legal department, equipment finance department, information and communication department, etc.), police stations (according to their functions, they can be divided into criminal investigation, public security, household administration and special services) and several task forces (such as criminal police team, patrol team, public security team, traffic police team, etc.). Different levels of the Public Security Bureau have different specific titles, such as ×× Corps, ×× Detachment, ×× Brigade, etc.) and active institutions (specifically, border defense, fire protection and security bureaus).