Criminal procedure law
Article 154 The period of investigation and detention of a criminal suspect after his arrest shall not exceed two months. If the case is complicated and cannot be concluded 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.
Article 155 For particularly serious and complicated cases that cannot be submitted for trial for a long time due to special reasons, the Supreme People's Procuratorate shall report to the NPC Standing Committee for approval to postpone the trial.
Article 156 If the investigation of the following cases cannot be concluded at the expiration of the time limit stipulated in Article 154 of this Law, it may be extended for two months with the approval or decision of the people's procuratorate of a province, autonomous region or municipality directly under the Central Government:
(1) Major and complicated cases in remote areas with very inconvenient transportation;
(2) Major criminal group cases;
(3) Major and complicated cases of escaping crime;
(four) major and complex cases involving a wide range and difficult to obtain evidence.
Article 157 A criminal suspect may be sentenced to fixed-term imprisonment of not less than 10 years. If the extended period stipulated in Article 156 of this Law expires and the investigation is terminated, it may be extended for another two months with the approval or decision of the people's procuratorate of a province, autonomous region or municipality directly under the Central Government.
Article 158 In the course of investigation, if a criminal suspect is found to have committed other major criminal acts, the time limit for investigation and detention shall be recalculated from the date of discovery in accordance with the provisions of Article 154 of this Law.
If a criminal suspect does not give his real name and address and his identity is unknown, his identity shall be investigated, and the period of investigation and detention shall be counted from the date when his identity is ascertained, but the investigation and evidence collection of his criminal acts shall not be stopped. If the facts of the crime are clear, the evidence is true and sufficient, and it is really impossible to find out his identity, he can also sue and try according to his self-reported name.