The scene of explosion in a passenger train is the objective material base of the reflection of the wxplosion process. It has such characterisitics as complex casualties, particular place and circumstance, two peculiar seperated scenes formed after the explosion, limit time of preverving and inspecting the scene, greatly comprehensive profession of inspection of the scene, etc.. Studies on the ways to know the main problem of inspection, follow basic principles, handle beforehead, collect remaining substances and exemin casualties, can direct the inspection in practice and is very important to the development of the theory of railway police.
