Dynamic security video surveillance system has become one of the most commonly used system in the present police, police capacity and efficiency of the system is greatly improved, but accompanied by accelerating dynamic security video surveillance system construction, the system continues to expand the scale and how to effectively monitoring system management to realize the actual value has become a thorny issue of current monitoring system prevalent in the current camera position is unreasonable, and less effective information, in the case of evidence-gathering and analysis process often takes a lot of manpower and time to view the massive video materials, seriously restricting its application efficiency. To solve the above problems, the company has developed KSA2000 police with the video quickly forensics system for fast processing and analysis of vast amounts of video data, the main function is as follows: 1. Retrieval based on motion analysis technology, to look at the surveillance video video automatically skip or fast forward most meaningless still fragment on the playback progress bar indicates the movement status in different colors, and the moving target prompted, thereby increasing the speed of analysis, and to speed up the video evidence collection process, reducing the workload. 2. According to the set conditions of the video in the DVR automatically batch. Video in accordance with the objectives and time slices, easy for users to quickly navigate to the incident fragment. The automatic motion fragment reorganization of the police investigators to focus on sports video analysis reorganization. Screenshot summary video characters, vehicles, support for OSD (time and place) information Remarks superimposed. By summary or slice direct linkage to the original video for detailed analysis. 6 with frame-by-frame playback function, support manual frame-by-frame analysis of the video for a second. 7 police analyzing video input classification retrieval of vehicles, people and movement of conditions in order to further reduce the video evidence collection time. 8. Illumination enhanced video, screenshots, light inhibition demisters enhance the details of the reduction process.