If you want to be a detective, you can apply for criminal investigation, criminal investigation, criminal investigation, material evidence technology, criminal psychology and other majors. Colleges and universities that include detective classes include People's Public Security University of China, China Criminal Police College, East China University of Political Science and Law, Zhongnan University of Economics and Law, Southwest University of Political Science and Law and so on. There are many majors that can be detectives, such as material evidence technology, criminal punishment investigation, criminal investigation and so on. Among them, the main courses of criminal investigation include criminal investigation, scene investigation, criminal investigation logic, criminal intelligence, investigation communication, investigation technology, investigation business management, pre-trial, police body and so on. Criminal investigation, also known as criminal investigation, mainly includes the basic theory of public security, criminology, public security management, general theory of public security, criminal law, criminal procedure law, administrative procedure law, self-defense principle, shooting, investigation, criminal investigation, political security, economic crime countermeasures, material evidence technology, forensic medicine, investigation and interrogation, and on-site investigation.