Interrogation (noun)

1. The act or process of questioning or inquiring.
2. A formal or informal questioning or examination, especially by authorities.

Origin:

From latin interrogatio, from interrogare "ask".

Examples:

1. The police conducted an interrogation of the suspect.
2. The interrogation was recorded on video.
3. The interrogation lasted for hours.
4. The lawyer was present during the interrogation.
5. The Interrogation techniques were questionable.