Legal analysis: the direct prosecution of a case by a public security organ means that the public security organ directly transfers the criminal suspect for examination and prosecution without taking compulsory arrest measures. In judicial practice, a criminal case in which a criminal suspect is released on bail pending trial and placed under residential surveillance without approval of arrest, and is directly transferred to a procuratorial organ for examination and prosecution after investigation, is usually called a "direct prosecution case". Like other criminal cases transferred to procuratorial organs for examination and prosecution, direct prosecution cases need to go through three stages: public security organs put on record for investigation, investigation ends and transfer for examination and prosecution. The only difference is that the direct complaint case lacks the procedure of submitting it to the procuratorate for examination and approval of arrest.
Legal basis: Article 163 of the Criminal Procedure Law of People's Republic of China (PRC). In the course of investigation, if it is found that the criminal suspect should not be investigated for criminal responsibility, the case shall be dismissed. A criminal suspect who has been arrested shall be released immediately, issued with a release certificate and notified to the people's procuratorate that originally approved the arrest.