Secretinvestigation is distinct from agent provocateur, because secret policemen have incomplete instigation on purpose, which is short of inculpation.
卧底侦查不同于教唆陷害，卧底警察具有不完整的教唆故意，欠缺可罚性。
2
Then, on this basis to discuss the properties of an undercover investigation, which include: proactive detection, enforcement measures, secretinvestigation.
然后在此基础上讨论卧底侦查的属性，具体包括：主动型侦查、强制措施、秘密侦查。
3
This trend makes secretinvestigation, which has special effects in the fight against and the prevention of crime, extensively used in investigation practice.