Concerns About the Royal Interrogator is a written note found in Dishonored.
Last night Corporal Huso woke up to find the freak leering at him in the dark. Other men have reported that personal items have gone missing, with odd things left in their place. Sanders said he found a bunch of teeth wrapped up in his handkerchief. Teeth. And Bilson found three painted rat-heads on a string in his shaving kit.
Whatever this is, it has to stop. The men are rattled and I don't know how long I can keep them from going into that bastard's room and beating him to death in his sleep. I don't care what you call him, executioner, torturer, Royal Interrogator or bat-faced troll, he's got to stay out of the barracks.
--First Commander Greggory
This note can be found during the Return to the Tower mission, on the desk in General Tobias' quarters.