1. To exercise procuratorial power over major criminal cases of treason, secession and serious harm to the unity of national policies, laws and decrees;
2. Investigate the criminal cases that the national staff directly accept for investigation by taking advantage of their powers;
3. Review the cases investigated by public security organs, state security organs and other investigation organs, and decide whether to arrest, prosecute or not. The public security organs and other investigation organs shall examine the cases investigated by the investigation organs and decide whether to arrest, prosecute or not to prosecute.
3. Examine and decide whether to arrest, prosecute or not to prosecute cases investigated by public security organs and other state security organs, and supervise the legality of the investigation organs' filing and investigation activities;
4. Supervise the correctness of criminal judgments and rulings of people's courts and the legality of trial activities;
5. supervise the legality of criminal trial activities of people's courts. To supervise the legality of the execution of criminal activities by the execution organs of prisons and detention houses;
6. supervise the civil litigation and execution activities of the people's courts.
legal basis: article 21 of the organic law of the people's procuratorate of People's Republic of China (PRC)
the people's procuratorate may conduct investigation and verification, lodge protests, correct opinions and procuratorial suggestions in accordance with the law when exercising its legal supervision functions as stipulated in article 2 of this law. The relevant units shall cooperate, and promptly give a written reply to the people's procuratorate on the adoption of corrective opinions and procuratorial suggestions.
the application scope and procedures of protest, correction opinions and procuratorial suggestions shall be handled in accordance with the relevant provisions of the law.