On the basis of absorbing the essence of ancient investigation activities and learning advanced foreign criminal investigation theories, China's criminal investigation has formed an independent knowledge system after more than 50 years of development. Since 1954, criminal investigation in new China has entered the period of the founding of the People's Republic of China. Some political and legal colleges have successively opened the course of "criminal countermeasures" (that is, "criminal investigation" now), translated the speeches and teaching materials of a group of criminal investigation experts in the former Soviet Union, and a complete set of criminal investigation teaching materials have come out one after another; During the ten-year turmoil from 1966 to 1976, criminal investigation research was seriously damaged. Although some colleges and universities set up criminal investigation training courses and courses around 1974, the teaching and research work in this period was basically at a standstill. From September 65438 to September 0979, the Public Security Bureau of the Ministry of Public Security organized and compiled the first textbook, Criminal Investigation, which systematically summarized the experience of criminal investigation since the founding of the People's Republic of China. In the same year, the Ministry of Public Security entrusted the Ministry of Justice to set up a criminal investigation department in Southwest University of Political Science and Law. Its criminal investigation major is the first undergraduate criminal investigation major approved by the Ministry of Education in China. At the beginning of its establishment, criminal investigation courses were set up to systematically introduce criminal investigation knowledge. 198 1 year later, various political, legal, public security and police colleges have successively compiled their own criminal investigation textbooks, and the construction of this course has entered an all-round development stage. At present, more than 100 colleges and universities in China have offered criminal investigation courses.