Legal analysis: 1, the time limit for compulsory measures (1), and the time limit for compulsory summons shall not exceed 12 hours; (2) The detention time generally does not exceed 14 days, and the longest in special circumstances is 37 days; (3) The time for obtaining bail pending trial shall not exceed 12 months; (4) The residential surveillance period shall not exceed 6 months. 2. After the suspect is arrested, the period of investigation and detention (1) shall not exceed 2 months; (2) If the case is complicated and cannot be concluded at the expiration of the time limit, it may be extended by 1 month; (3) In line with the provisions of Article 126 of the Criminal Procedure Law, it can be extended for 2 months; (4) If the criminal suspect may be sentenced to fixed-term imprisonment of more than 10 years, the extension period shall expire according to Article 126 of the Criminal Procedure Law, and if the investigation cannot be concluded, it may be extended for another two months; (5) If other important crimes are discovered, the time limit shall be recalculated. According to the provisions of Article 166 of the Criminal Procedure Law, the people's procuratorate shall complete the supplementary investigation within 1 month for the case postponed according to the second provision of Article 165 of the Criminal Procedure Law.
Legal basis: Article 19 of the Criminal Procedure Law of People's Republic of China (PRC), except as otherwise provided by law, criminal cases shall be investigated by public security organs. Crimes such as illegal detention, extorting confessions by torture, and illegal search. The people's procuratorate may file a case for investigation of illegal acts found by judicial personnel in the process of legal supervision of litigation activities. If a major criminal case of a functionary of a state organ under the jurisdiction of a public security organ needs to be directly accepted by a people's procuratorate, it may be placed on file for investigation upon the decision of a people's procuratorate at or above the provincial level. Cases of private prosecution are directly accepted by the people's courts.