Though Erik had vaguely welcomed the idea of participating in the interrogations, it only took a few days for his enthusiasm to vanish.

He would enter the cell of an inmate with a colleague, handcuff them, escort them to the interrogation room and then wait in a corner as a safeguard in case the prisoner became violent in the course of the questioning. At regular intervals he was supposed to remind the officers that it was time for a pause: interrogations had fairly regular ...