Legal analysis: Audio and video recording of interrogating a criminal suspect means that the public security organ uses audio and video recording equipment to synchronously record the whole interrogation process while interrogating a criminal suspect. The audio and video recording of the interrogation process shall be continued in each interrogation process and kept intact, and shall not be selectively recorded, edited or deleted. In the process of handling criminal cases, if a criminal suspect is interrogated remotely in a detention center or through online video, the interrogation process shall be recorded and videotaped. Public security organs at all levels should actively create conditions to realize audio and video recording of all criminal cases as soon as possible. Equipment finance, police support, science and technology, information and communication departments shall provide support and support for interrogation audio and video recording.

Legal basis: Article 2 16 of the Procedures for Handling Criminal Cases by Public Security Organs. When exploring the site, it is necessary to take photos of the site, draw a map of the site, and make a record, which shall be signed by the participants and witnesses. The on-site investigation of major cases shall be recorded and videotaped.