The chat history has been deleted. Can the public security bureau check it?

Legal analysis: whatever you can find is used as evidence. Legal basis: Paragraph 2 of Article 1 16 of the Interpretation of the Civil Procedure Law stipulates that electronic data refers to information formed or stored in electronic media by means of e-mail, electronic data exchange, online chat records, blogs, micro-blogs, mobile phone short messages, electronic signatures and domain names. Chat record belongs to online chat record, which obviously belongs to a kind of electronic data. According to Article 63, Item 5 1 of the Civil Procedure Law, electronic data is a kind of evidence. Therefore, the chat record has legal effect and can be used as evidence.

Legal basis: Article 63 of People's Republic of China (PRC) Civil Procedure Law includes:

(a) Statements of the parties;

(2) Documentary evidence;

(3) Physical evidence;

(4) Audio-visual materials;

(5) Electronic data;

(6) Testimony of witnesses;

(7) Appraisal opinions;

(8) Records of the inquest.

Evidence must be verified before it can be used as a basis for ascertaining facts.

Article 116th of the Interpretation on the Application of the Civil Procedure Law of People's Republic of China (PRC) includes audio-visual materials and video materials.

Electronic data refers to information formed or stored in electronic media by means of e-mail, electronic data exchange, online chat records, blogs, Weibo, SMS, electronic signature and domain name.

Audio and video materials stored in electronic media shall comply with the provisions of electronic data.