2 adjectives to describe interrogators

" "Of what do you suspect her?" The look of deep, engrossing, maternal anxiety, that the lovely interrogator received in reply to this question, might have startled one whose mind had been more accustomed to muse on the depravity of human nature than the spotless being who received it; but to Gertrude it conveyed no more than a general and vague sensation of alarm.

"Have you ever felt jealousy?" continued his undisturbed interrogator.

2 adjectives to describe  interrogators