Article 111 of the Criminal Procedure Law stipulates that if the people's procuratorate thinks that the public security organ does not file a case for investigation, or if the victim thinks that the public security organ does not file a case for investigation, the people's procuratorate shall ask the public security organ to explain the reasons for not filing a case. If the people's procuratorate believes that the reason why the public security organ does not file a case cannot be established, it shall notify the public security organ to file a case, and the public security organ shall file a case after receiving the notice.
The police station is the grass-roots organization of the public security system and the agency of the higher public security organs. According to the national public security management regulations and the authority stipulated by the public security organs at higher levels, the main tasks of the police station are to resolutely implement the line, principles and policies of public security work, crack down on criminals, prevent and control all kinds of accidents, manage social security, maintain social security, protect people's legitimate rights and interests from infringement and safeguard national security.