At which stage of case monitoring, electronic data will be retrieved.

In the preliminary verification stage.

According to the website of the Ministry of Justice of the People's Republic of China, the supervisory organ must strictly follow the examination and approval procedures, take corresponding investigation measures at different stages, and make relevant legal documents and materials according to law. The collection of electronic data mainly involves monitoring measures such as search, retrieval, seizure, seizure, inspection, identification and technical investigation. Among them, the retrieval, inspection or identification of electronic data can be carried out in the preliminary verification stage; The electronic data collected by the supervisory organs at or below the municipal level with districts by searching, sealing up or detaining measures or technical investigation measures must be conducted after the investigation is initiated. Thirdly, in the aspect of obtaining evidence, investigators should pay attention to analyzing the correlation between information content and case facts, and collect materials related to the case according to law to avoid expanding the scope of obtaining evidence; Those involving state secrets, work secrets, business secrets and personal privacy shall be kept confidential; If the materials obtained have nothing to do with the case, they shall be returned or destroyed in time.