Legal basis: Criminal Procedure Law of People's Republic of China (PRC).
Article 12 No one shall be found guilty without a judgment of the people's court according to law.
Article 3 The public security organs shall be responsible for the investigation, detention, execution of arrest and preliminary examination of criminal cases. The people's procuratorate shall be responsible for the prosecution, approval of arrest, investigation and prosecution of cases directly accepted by procuratorial organs. The people's court is responsible for the trial. Except as otherwise specified by law, no other organ, organization or individual has the right to exercise these powers.