Crime scene investigation, crime scene analysis, organization and command of crime scene investigation, criminal investigation, general theory of investigation, criminal case investigation, investigation decision and command, terrorism and domestic security, pre-trial, procedures for public security organs to handle criminal cases, investigation principles, investigation and interrogation, etc.
It can be seen from the curriculum that criminal police are useful as long as they are related to discovering crimes, obtaining criminal evidence and transferring criminal suspects for prosecution. Criminal psychology, logic and trace inspection involved in the problem are all things that criminal police should know to a considerable extent, but they are not necessarily proficient.
Excellent criminal police are honed in the process of handling cases by applying what they have learned, applying what they have learned and applying what they have learned. An old policeman said that there are no identical cases in the world, which means that every case has something to learn and accumulate. There is also a saying that criminal police need to know everything. This means that criminal police will encounter various problems in handling cases, involving all aspects of knowledge. If not, they will ask for advice and master it.
Of course, it is best to master in advance and study in depth.