Bump and Update: The Mirrorhas more details of the released Guantanamo detainee's charges of mistreatment:

Their "cells" were wire cages with concrete floors and open to the elements - giving no privacy or protection from the rats, snakes and scorpions loose around the American base. He claims punishment beatings were handed out by guards known as the Extreme Reaction Force. They waded into inmates in full riot-gear, raining blows on them. Prisoners faced psychological torture and mind-games in attempts to make them confess to acts they had never committed. Medical treatment was sparse and brutal and amputations of limbs were more drastic than required, claimed Jamal. A diet of foul water and food up to 10 years out-of-date left inmates malnourished.

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Original post

One of the British detainees sent back to Britain from Guantanamo and subsequently released is sharing very unflattering details of his confinement with the media:

Jamal al-Harith told how US soldiers brought in prostitutes to the camp, and paraded them naked in front of the many devout Muslims. The 37-year-old also claimed he was kicked, punched and assaulted with batons. He told the Daily Mirror that detainees were shackled for up to 15 hours at a time in hand and leg cuffs with metal links to the skin. Mr Harith said punishment beatings were meted out by guards and prisoners were subjected to pyschological torture and mind games in an effort to break them.

Update: Here's more.