investigatory activity的用法和样例：
例句
- Procuratorial organs should strictly supervise law enforcement in the investigating activities of public security organs.
检察机关严格监督公安机关侦查活动中的执法情况。 - The investigation activities of the anti-smuggling police shall be supervised by the People's Procuratorate.
缉私警察进行侦查活动，依法接受人民检察院的监督。
