Legal analysis: Court criminal case files can be checked online by a lawyer. The analysis is as follows:
1. They can be checked at the public security department or procuratorate, but must be authorized by the police handling the case. To query.
2. Criminal cases cannot be queried on the Internet and are confidential. Only the intranet of the Public Security Bureau can be queried. For criminals wanted online, you can check online.
Legal basis: "Article 109 of the Chinese People's Liberation Army and the National Criminal Procedure Law". If the public security organ or the People's Procuratorate discovers criminal facts or criminal suspects, it shall file a case for investigation according to the jurisdiction. .