Volunteer Investigations Unit, also known as Volunteer Investigations, was a division within the Taelons Volunteer corps who were charged with investigating individuals for criminal activities. A group of such officers cornered Auger in order to escort him to Central for interrogation. (Episode: The Forge of Creation) A sub-division within the body was the Special Crimes Unit. (Episode: Blood Ties)

The Episode Dream Stalker refers to the group as the Volunteer Investigations Unit.