The definitive CIA manuals on interrogation including "coercive techniques."
KUBARK
Part 1,
Part 2, &
Part 3.
The Human Resources Exploitation Manual
Part 1 &
Part 2Kubark was interesting as it came from the CIA funded research of Dr. Ewen Cameron, an eminent psychiatrist in Montreal. He performed experiments on those who had no idea they were being experimented upon. One component of these experiments included Canadian Native American children, Vacaville prison inmates, as well as Cameron's own patients who came into his care with minor problems such as anxiety and left with schizophrenia, etc.