Investigation work applies various measures to collect criminalinformation and obtain investigation clues based on characteristics in different action stages.
侦查工作就是要根据不同行为阶段的特点采取不同的措施手段去搜集犯罪信息，获取侦查线索。
2
Europol is one of the Most Important ways of the policing cooperation in EU, whose main objective is to promote the communication of criminalinformation and data within the Member States.
欧洲刑事警察组织是欧盟各国开展警务合作的主要方式，致力于成员国间的情报信息资料交流。
3
Criminalinformation in spots means various evi de nce of traces that suspects leaved at the crime scene and rational cognition gained from the change of the objects in the spots by the investigators.