investigatory activity的用法和樣例：
例句
- Procuratorial organs should strictly supervise law enforcement in the investigating activities of public security organs.
檢察機關嚴格監督公安機關偵查活動中的執法情況。 - The investigation activities of the anti-smuggling police shall be supervised by the People's Procuratorate.
緝私警察進行偵查活動，依法接受人民檢察院的監督。
