What is the audio-visual post of the Criminal Investigation Corps of the Public Security Bureau?

Public security audio-visual technology majors comprehensively use modern science and technology such as computer technology, photography and video recording to study the formation and changes of audio-visual evidence in various crimes, and use technical means such as collection, extraction, processing, analysis, inspection and identification to record, show, inspect and identify information such as images and sounds of all objects related to crimes, so as to provide clues and evidence for investigation, prosecution and trial. This major mainly trains senior professionals who are engaged in technical appraisal, teaching and scientific research in the fields of image technology and audio-visual material inspection. There are two professional directions: image technology and audio-visual material inspection.