inquisitor

noun
1
a person who asks a lot of difficult questions, especially in a way that makes you feel threatened
بازپرس, پرسش‌گر سخت‌گیر, ممتحن سخت‌گیر
2
an officer of the inquisition of the Roman Catholic Church
مامور تفتیش عقاید, بازرس تفتیش عقاید