With the latest technologies of digital HD audio and video processing, intelligent control, network intelligent transmission and secure encryption, it can provide perfect functions such as full HD (1080P) synchronous recording and video recording, online command, remote observation, case file management, electronic record, interrogation command, remote interrogation, data secure encryption and transmission. It will provide the necessary information technology guarantee for improving the law enforcement level and case handling quality of the public security team. It is suitable for mobile interrogation and case handling needs of public security, procuratorial, disciplinary commission, customs, security and other departments.