1, whether the facts and circumstances of the crime are clear, whether the evidence is true and sufficient, and whether the nature of the crime and the determination of the charges are correct;
2, there is no omission of crimes and other people who should be investigated for criminal responsibility;
3, whether it belongs to criminal responsibility should not be investigated;
4. Whether there is an incidental civil action;
5. Whether the investigation activity is legal.
The people's procuratorate shall, in accordance with the relevant provisions of this law and the supervision law, examine the cases transferred by the supervision organs for prosecution. If the people's procuratorate considers it necessary to make supplementary verification after examination, it shall return it to the supervisory organ for supplementary investigation, and may make supplementary investigation on its own if necessary. The people's procuratorate shall first detain the criminal suspect in the case that the supervisory organ has transferred for prosecution, and the lien measures shall be automatically lifted. The people's procuratorate shall, within ten days after detention, make a decision on whether to arrest, get a bail pending trial or monitor residence. Under special circumstances, the decision time can be extended by one to four days. The period when the people's procuratorate decides to take compulsory measures shall not be counted in the period of examination and prosecution.
Legal basis: Article 171st of the Criminal Procedure Law of People's Republic of China (PRC).
When examining a case, the people's procuratorate must find out:
(a) whether the facts and circumstances of the crime are clear, whether the evidence is true and sufficient, and whether the nature of the crime and the determination of the charges are correct;
(two) whether there are any omission crimes and other persons who should be investigated for criminal responsibility;
(3) Whether criminal responsibility should be investigated;
(4) Whether there are incidental civil actions;
(5) Whether the investigation activity is legal.