Criminal Investigation

On-site investigation

At the scene of a criminal case, it is usually necessary to take pictures of location, overview and detail of the scene to record and display informations for that. Drones aerial photography technology can achieve a full range, multi-angle, multi-level, and large-scale display for the scene of the case. Key areas and physical evidence can be recorded by adjusting flight height and lens focal length,initial search on site can also be realized at the same time. In wild area, scene pictures can be taken by drones,can intuitively display status of the corpse, the surrounding environment, and obtain the scene information most conveniently. In large-scale cases involving multiple scenes, it is possible to directly display the positional relationship of multiple crime scenes, and provide basis for determining trajectory and route of the criminal suspect before and after the incident.

Tracking control

Criminal investigation departments often deal with some serious cases, which are related to cross-provincial financial crimes and criminal suspects often cooperate. In such cases, it is often necessary for the investigators to grasp organizational structure, law of committing the crime, and foothold of the gang members before they are completely arrested. Actually,financial crime cases generally happen in dense crowds area urban areas. Due to the large number of people in this area and the relatively complicated situation, the relevant investigation work requires a large amount of police force, and if there is a problem during the whole process, criminal suspects will quickly disappear into the crowd, the targets will easily be lost. Then if police uses a drone to track suspects at high altitude, and use the corresponding location information combined with the returned video image for face recognition and feature locking, the target can be confirmed easily. In some complex environments, it is also possible to carry out control and formulate arrest plans based on on-site video information and positioning data in conjunction with the police geographic information system.

Reconnaissance and evidence collection

If reconnaissance area is too large,or terrain is complex, or social factors and other restrictions are not conducive to manpower for on-site reconnaissance, UAVs can take it to replace labor.

Alltech drones can work with different cameras, low-light night vision device, infrared scanners and radars to realize detection and evidence collection functions. In the process of tracing criminals, it is often the case that criminal suspects have been locked but can’t be found because of dense populated residential area,which limits reconnaissance to a certain extent. Drones will play an important role in tracking suspects,pictures/images can be sent back to commanding center by wireless transmission technology.

Alltech drones can work with different payloads and are applicable widely.For example,infrared cameras are using widely for criminals arresting at night,the systems can investigate and search crime scene at night and under poor lighting conditions. Oblique cameras can be used for mapping and surveying, combining with 3D modeling technology, they system can realize scene Three-dimensional high-precision reconstruction and measurement,provide more stereoscopic and intuitive on-site information for case analysis and judgment.

Assist in arresting

When some criminal suspects escape, they usually choose night time in sparse and complex area, which undoubtedly makes arresting very difficult. Then Alltech UAVs can be equipped with thermal infrared cameras to quickly arrive at the scene of the incident, collect/transmit high-definition audio and video and transmit datas to the commanding center in time for the commander to make judgments and decisions It greatly enhances the investigation ability of the on-site disposal working group, improves security and reliability of information acquisition, it can play a key role in the case investigation.