‘The forever prisoner’: Abu Zubaydah’s drawings expose the US’s depraved torture policy

Exclusive: For 21 years, the detainee has been in US custody without charge, tortured and sexually humiliated, with no prospect for release

Warning: the images and descriptions of torture in this article are extremely graphic

A detainee held in the US prison camp at Guantanamo Bay who was used as a human guinea pig in the CIA's post-9/11 torture program has produced the most comprehensive and detailed account yet seen of the brutal techniques to which he was subjected.

Abu Zubaydah has created a series of 40 drawings that chronicle the torture he endured in a number of CIA dark sites between 2002 and 2006 and at Guantanamo Bay. In the absence of a full official accounting of the torture program, which the CIA and the FBI have labored for years to keep secret, the images give a unique and searing insight into a grisly period in US history.