Legal analysis: If the public security organ deems it necessary to arrest the detained person, it shall submit it to the people's procuratorate for examination and approval within 3 days after detention. Under special circumstances, with the approval of the person in charge of the public security organ at or above the county level, the time for submission for examination and approval may be extended by 1 to 4 days. With the approval of the person in charge of the public security organ at or above the county level, the time for reporting for examination and approval can be extended to 30 days for major criminal suspects who have committed crimes on the run, repeatedly committed crimes or committed crimes in partnership. To sum up, in general, the longest detention period in criminal proceedings is 14 days. Major suspects who commit crimes on the run, commit crimes many times or commit crimes by gangs can be detained for up to 37 days.
Legal basis: Article 89 of the Criminal Procedure Law of People's Republic of China (PRC). Whether to examine and approve the arrest of a criminal suspect shall be decided by the people's procuratorate. Major cases shall be submitted to the procuratorial committee for discussion and decision.