How to check the registration number of a case?

Legal analysis: No document number. The receipt of accepting a case is only the proof that the public security organ received the report, not the proof of filing a case. If you are not satisfied with the decision of the public security organ not to file a case, you can submit a review to the public security organ, or you can submit an application to the procuratorial organ with the decision of not to file a case, asking the procuratorial organ to supervise the public security organ.

Legal basis: Criminal Procedure Law of People's Republic of China (PRC).

Article 19 Criminal cases shall be investigated by public security organs, except as otherwise provided by law. 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.

Article 20 The basic people's courts shall have jurisdiction over ordinary criminal cases of first instance, except those under the jurisdiction of the people's courts at higher levels according to this Law.

Article 21 The Intermediate People's Court shall have jurisdiction over the following criminal cases of first instance:

(1) Cases endangering national security and terrorist activities;

(2) Cases that may be sentenced to life imprisonment or death penalty.

Article 22 Criminal cases of first instance under the jurisdiction of the Higher People's Court are major criminal cases in the whole province (autonomous regions and municipalities directly under the Central Government).

Article 23 Criminal cases of first instance under the jurisdiction of the Supreme People's Court are major national criminal cases.