Can the public security department check deleted WeChat records?

Legal analysis: can be found. But under normal circumstances, the WeChat chat history information of WeChat users will not be queried. Of course, the user's WeChat information records will only be queried in extremely severe cases. Not only the chat records of various instant messaging APPs, but also the files, address books, text messages, call records, notepads, calendars, etc. on the mobile phone. Even if they are deleted, they can be recovered. If the WeChat content involves criminal cases, especially important criminal case investigation clues, the public security organs at or above the county level can use technical investigation methods on the mobile phone number. This method can track the location of your mobile phone (it is useless even if it is turned off, it can still be tracked), monitor your calls, and intercept your WeChat messages.

Legal basis: Article 63 of the "Civil Procedure Law" Evidence includes: (1) Statements of the parties; (2) Documentary evidence; (3) Physical evidence; (4) Audio-visual materials; (5) Electronic Data; (6) Witness testimony; (7) Expert opinion; (8) Inspection records; evidence must be verified to be true before it can be used as a basis for determining facts.