If the relevant evidence is fixed by printing, photographing or video recording, it shall clearly reflect the content of electronic data, indicate the reasons for fixing the relevant evidence by printing, photographing or video recording in the relevant transcripts, and be signed or sealed by the investigator and the electronic data holder (provider), indicating the storage location, characteristics and location of the original storage medium of electronic data; If the electronic data holder (provider) is unable to sign or refuses to sign, it shall be noted in the record and signed or sealed by the witness.

First, to collect and extract electronic data, you can take one or more of the following measures and methods according to the needs of the case:

1. Seal up and seal up the original storage medium;

2. Extract electronic data on site;

3. Online extraction of electronic data through the network;

4. Freezing electronic data;

5. Access to electronic data.

Two, electronic data forensics including but not limited to:

1, collecting and extracting electronic data;

2. Electronic data inspection and investigation experiments;

3, electronic data inspection and identification.

Legal basis: Article 6 of the Rules for Obtaining Evidence from Electronic Data in Criminal Cases of Public Security Organs shall be collected and extracted by two or more investigators. When necessary, professional technicians can be appointed or hired to collect and extract electronic data under the auspices of investigators.