Criminal Procedure Law of the People's Republic of China
Article 18 Criminal cases shall be investigated by public security organs, except as otherwise provided by law.
Crimes of corruption and bribery, crimes of dereliction of duty by state functionaries, crimes of illegal detention, crimes of extorting confessions by state functionaries by torture, crimes of retaliation and framing, crimes of illegal search, and crimes of infringing citizens' democratic rights shall be investigated by the people's procuratorate. If other major criminal cases committed by state functionaries by taking advantage of their functions and powers need to be directly accepted by the people's procuratorate, they may be placed on file for investigation upon the decision of the people's procuratorate at or above the provincial level.
Cases of private prosecution are directly accepted by the people's courts.