(1) Criminal detention and approval of arrest stage: Article 89 of the Criminal Procedure Law: "If the public security organ deems it necessary to arrest a detained person, it shall submit it to the people's procuratorate for examination and approval within three days after detention. Under special circumstances, the approval time can be extended by one to four days. For major suspects who commit crimes on the run, commit crimes many times or commit crimes in collusion, the time for submitting for examination and approval may be extended to 30 days. After receiving the notice from the public security organ approving the arrest, the people's procuratorate shall make a decision on whether to approve the arrest or not within seven days. "
(2) Investigation stage: Article 154 of the Criminal Procedure Law: "The period of investigation and detention of a criminal suspect after arrest shall not exceed two months. If the case is complicated and cannot be terminated at the expiration of the time limit, it may be extended for one month with the approval of the people's procuratorate at the next higher level. "
(3) Review and prosecution stage: Article 169 of the Criminal Procedure Law: "The people's procuratorate shall make a decision on the case transferred for prosecution by the public security organ within one month, and it may be extended by half a month for major and complicated cases."
(4) Trial stage: Article 202 of the Criminal Procedure Law stipulates: "When trying a case of public prosecution, the people's court shall announce the judgment within two months after accepting it, and no later than three months. For a case that may be sentenced to death or an incidental civil lawsuit, if one of the circumstances stipulated in Article 156 of this Law occurs, it may be extended for three months with the approval of the people's court at the next higher level; If it needs to be extended due to special circumstances, it shall be reported to the Supreme People's Court for approval. "