inquisitor
/ɪnˈkwɪzɪtə(r)/noun
1- a person making an inquiry, especially one seen to be excessively harsh or searching询问者（尤指过分严格的盘问者）：
the professional inquisitors of the press.
新闻界以追根问底为职业的人员。
1.1
- historical an officer of the Inquisition〈史〉异端裁判官, 宗教法庭审判官。
词源
late Middle English: from French inquisiteur, from Latin inquisitor, from the verb inquirere （see ENQUIRE）.