What cases does the major crimes unit usually take charge of?

The Criminal Investigation Brigade (Interpol Brigade) consists of four squadrons of Interpol, namely, the first, second, third and fourth squadrons, as well as the brigade office (comprehensive squadron), criminal technical squadron, serious crime squadron, special intelligence squadron and intelligence squadron. The brigade is at the official level, and the squadrons are at the deputy level. The business scope of the squadron of serious crimes is: homicide cases (complex cases), major cases and cases designated by superiors.

Legal basis:

Criminal Procedure Law of the People's Republic of China

Article 115 A public security organ shall investigate a criminal case that has been put on file, and collect and obtain evidence of the criminal suspect's guilt or innocence, whether the crime is minor or serious. An active criminal or a major suspect may be detained in advance according to law, and a criminal suspect who meets the conditions for arrest shall be arrested according to law.

Article 116 After investigation, a public security organ shall conduct a preliminary examination of a case with evidence to prove that there are criminal facts, and verify the evidence materials collected and collected.