Dalian Public Security Bureau is a municipal governmental department presiding over the public security of the city. It consists of more than 30 branches and 12 public security bureaus of counties and towns. Under the guidance of the municipal committee and the municipal government and superior public security bureaus, Dalian Public Security Bureau performs the following functions:

1. Implementing the guidelines and policies of police work and drafting out related local regulations and organizing carrying out the police and safeguard work of the city;

2. Mastering the situations which threaten the stability of policies and the domestic safety and the social public security, and working out related measures and carrying them out;

3. Preventing, forbidding and detecting crimes and dealing with accidents and turbulence, and managing meetings, parades and demonstrations according to law. Supervising special industries and dangerous goods;

4. Maintaining traffic safety and traffic orders, and coping with traffic accidents;

5. Organizing carrying out and supervising fire prevention;

6. Undertaking safeguarding the Party and top leaders of China and important foreign guests;

7. Supervising residence policies, nationality, affairs on entry and exit of aliens and related affairs of aliens' staying and traveling in Dalian according to law;

8. Executing penalties to the criminals sentenced to be controlled or taken into custody or being deprived of political rights and to the criminals to be punished out of prisons. Supervising and examining the criminals placed on probation or released on probation. Administrating jails, hoosegows, compelling drug quitting hospital, accepting and educating office, etc according to law;

9. Supervising and guarding the public information network;

10. Directing and supervising the securities of national departments, social communities, enterprises and key construction projects. Directing the security keeping work of security keeping committees and other folk organs;

11. Presiding over educating penitentiary people and laboring according to law;

12. Carrying out police scientific and technological work and taking charge of the construction of police information technology, criminal technology and action technology;

13. Taking charge of securing the installation and sufficient funds of police equipments for departments directly under the control of municipal public security bureau. Directing the equipments and financial affairs of police branch offices;

14. Working out and implementing the regulations and policies of managing the whole police. Organizing educating, training and publicizing the whole public security bureau. Supervising leaders and police ranks according to their power purviews. Carrying out police supervision and handling illegal cases of Dalian police;

15. Leading Dalian fire prevention and safeguard police, and leading and directing army troops to carry out police tasks and related affairs;

16. Undertaking affairs handed over by the municipal committee, the municipal government and the police department.

Under the support of the whole city's people and all walks of life and with the efforts made by the whole police, Dalian's public security is well kept and in good order, and people are living a steady and happy life. Now Dalian is one of the most energetic cities and has best social orders in China.