There are several brigades under the Criminal Investigation Center of the Public Security Bureau, which are not fixed. According to the security situation and the number of police forces in the jurisdiction, the following brigades are set up:

First, the technical investigation brigade is mainly responsible for on-site investigation, trace material evidence inspection, forensic identification and other business work.

The second is the major case investigation brigade, which is mainly responsible for the investigation of homicide cases and serious violent crimes.

The third is the video investigation brigade.

The fourth is the anti-telecom fraud investigation brigade.

Fifth, the investigation brigade in the area of responsibility, each brigade is responsible for the investigation of general criminal cases in a certain area (several can be set up in the area according to the situation).