What should I do if the case is delayed for a long time after the public security organ files a case?

One criminal case was at large and the other was arrested. How long it takes to close the case depends on the cycle of the case. However, the time limit for the investigation and detention of a criminal suspect after his arrest shall not exceed the time limit stipulated in China's Criminal Procedure Law. Therefore, when a person has been at large for a certain period of time, the judicial organ can handle another case and try the arrested party first. According to Article 154 of the Criminal Procedure Law of People's Republic of China (PRC), 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 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 within 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. If the public security organ fails to solve the problem for a long time after filing the case, it shall appeal to the local procuratorate and exercise legal supervision through the procuratorate. The Opinions of the Ministry of Public Security on Reforming and Perfecting the Acceptance System for Filing Cases stipulates for the first time the time limit for public security organs to examine criminal investigation cases, and requires public security organs to conduct the examination immediately after receiving the report. Cases with clear facts about illegal crimes shall be accepted, handled and closed immediately, and no prevarication or delay shall be allowed. In principle, the time limit for examination of administrative cases shall not exceed 24 hours, the time limit for examination of difficult and complicated cases shall not exceed 3 days, and the time limit for examination of criminal cases shall not exceed 3 days. Suspected criminal clues need to be verified, and the time limit for filing a case for review shall not exceed 7 days. For major and complicated cases, with the approval of the person in charge of the public security organ at or above the county level, the time limit for filing a case for review may be extended to 30 days. Where there are other provisions in laws, regulations and rules on the time limit for filing a case for review, they shall be observed.