Legal basis: Criminal Procedure Law of People's Republic of China (PRC).
Article 107 When a public security organ or a people's procuratorate discovers a criminal fact or a criminal suspect, it shall file a case for investigation within its jurisdiction.
Article 172 If a people's procuratorate considers that the criminal facts of a criminal suspect have been ascertained and the evidence is true and sufficient, and criminal responsibility should be investigated according to law, it shall make a decision on prosecution, institute a public prosecution in a people's court in accordance with the provisions on trial jurisdiction, and transfer the case files and evidence to the people's court.