Legal analysis: For cases suspected of cyber crime, the network supervision department will file an investigation. The process of handling cases by the network supervisor covers investigation and evidence collection, data storage of electronic equipment, and finding traces of suspects through technical means. The responsibilities of the network supervision department are very wide, and all those involved in cyber crimes are the responsibilities of the network supervision department.

Legal basis: Article 5 of the Cyber Security Law of the People's Republic of China. The state takes measures to monitor, defend and respond to cyber security risks and threats originating in and outside People's Republic of China (PRC), protect key information infrastructure from attacks, invasions, interference and destruction, punish cyber crimes according to law, and maintain the security and order of cyberspace.