Legal basis:
Procedures for handling criminal cases by public security organs
Article 254 After placing a case on file, the public security organ may, according to the needs of investigating crimes, take technical investigation measures for the following criminal cases that seriously endanger society: (4) Major criminal cases committed by using telecommunications, computer networks, delivery channels, etc. And major criminal cases against computer networks;
Article 255 Technical investigation measures refer to measures such as record monitoring, whereabouts monitoring, communication monitoring and place monitoring implemented by the competent technical investigation department of public security organs at or above the municipal level with districts.