1. Investigating criminal cases, we often hear about criminal cases such as theft, murder and fraud.
2, criminal investigation, analysis and research of criminal cases;
3, organize and coordinate the detection of general, major and extraordinarily serious criminal cases;
4. Take charge of the extraction, inspection and identification of case traces and material evidence.
5. To undertake anti-drug, anti-gang and anti-terrorism work within its jurisdiction;
6, undertake the investigation and prevention of economic crimes within their respective jurisdictions (some places have special economic investigation departments);
7. To undertake liaison and contact with foreign-related criminal cases and foreign-related police affairs.