The on-site investigation box is a toolbox brought by the on-site investigators to the crime scene, which gathers various types of evidence collection equipment. It has many different types and can be classified according to its professional nature into trace evidence investigation boxes, trace evidence investigation boxes, biological evidence investigation boxes, on-site photo investigation boxes, fire scene investigation boxes, explosion scene investigation boxes, traffic accident scene investigation boxes, forensic scene investigation boxes, as well as computer evidence investigation boxes, and so on.