What is the main job of criminal police? What's the difference with the police?

Interpol and the police mainly have different responsibilities.

The main duty of criminal police: to crack down on criminal offences. Criminal investigation, analysis and research of criminal offences; Organize and coordinate the detection of general, major and extraordinarily serious criminal cases; To undertake the extraction, inspection and appraisal of case traces and material evidence. To undertake anti-drug, anti-gang and anti-terrorism work within its jurisdiction; To undertake the investigation and prevention of economic crimes within its jurisdiction (some places have special economic investigation departments); To undertake liaison and contact with foreign-related criminal cases and foreign-related police affairs.

The main task of the people's police is to deal with civil disputes.

Police duties: 1. To prevent, stop and investigate illegal and criminal activities; 2. Maintain social order and stop acts that endanger social order; 3. Maintain traffic safety and traffic order and deal with traffic accidents; 4. Organize the implementation of fire control work and implement fire control supervision; 5, the management of firearms, ammunition, knives and flammable, explosive, toxic, radioactive and other dangerous goods; 6. Manage special industries as stipulated by laws and regulations.