Interrogation is a key element of the police power, it plays a very important role in the detection, prevention and suppression of criminal activities as well as in seizing the suspect, eliminate security harzards. 盘查权是警察权的一项主要内容,它在发现、预防、制止违法犯罪活动以及查缉犯罪嫌疑人、消除治安危害等方面起着非常重要的作用。