How is the jurisdiction of the criminal procedure law stipulated?

Jurisdiction has always been very important in any law of our country. For example, jurisdiction in China's criminal law refers to some specific division of labor systems in which public security organs, procuratorates or municipal people's courts file cases. So many people want to know how the jurisdiction of the criminal procedure law is stipulated. First, how is the jurisdiction of the Criminal Procedure Law stipulated? Jurisdiction in China's criminal procedure law refers to the division of labor system in which public security organs, people's procuratorates and people's courts file criminal cases according to law and try criminal cases of first instance within the people's court system. Jurisdiction in China's criminal procedure law is divided into filing jurisdiction and trial jurisdiction. Second, the jurisdiction of filing a case, also known as functional jurisdiction or departmental jurisdiction, refers to the scope of functions and powers of the people's courts, people's procuratorates and public security organs to directly accept criminal cases, that is, the division of functions and powers between specialized agencies within the scope of directly accepting criminal cases. Three. Article 18 of the Criminal Procedure Law stipulates that: "Criminal cases shall be investigated by public security organs, except as otherwise provided by law." Special attention: "It is otherwise provided by law" refers to a criminal case listed in the substantive law, but it is stipulated in the procedural law that investigation is not required and the people's court can directly accept it. This is the case of private prosecution. Second, it refers to criminal cases that should be filed for investigation by other organs or departments according to the law. Such cases include: (1) self-investigation cases under the jurisdiction of the people's procuratorate according to law; (2) Cases endangering national security that are put on file for investigation by state security organs according to law; (3) Cases filed for investigation by the military security department in the army according to law; (4) Cases in which criminals who have been put on file for investigation according to law commit crimes in prisons. A case filed for investigation by a public security organ shall be filed for investigation by the public security organ in the place where the crime was committed. If it is more appropriate to be under the jurisdiction of the public security organ where the criminal suspect lives, it can be under the jurisdiction of the public security organ where the criminal suspect lives. Cross-regional series of motor vehicle theft and robbery cases shall be filed for investigation by the public security organ that initially accepted them; When necessary, the public security organ in the main crime place may file a case for investigation, or the public security organ at a higher level may designate the case for investigation. Criminal cases on passenger trains shall be put on file for investigation by railway police, the public security organ in charge of passenger train crew. Firstly, introduce the definition of jurisdiction in our country's criminal procedure law, followed by jurisdiction in criminal procedure law, including filing jurisdiction, and the scope of cases directly accepted and under the jurisdiction of public security organs, and also introduce them to you.