careful, close
direct
She decided to confront her boss about the situation with direct questioning.

intensive
aggressive, hostile, tough
constant, repeated

face
be wanted for
be detained for, be held for
Four suspects have been detained for questioning in connection with the incident.

under questioning
The suspect remained silent under questioning.

questioning about, questioning on, questioning over
The disaster prompted questioning about safety standards.

questioning by
The man was released after questioning by detectives.

questioning from
The group chairman faced hostile questioning from angry shareholders.

Questioning is used with these nouns:
eyebrow, gaze, glance, look