The commander of anti-government forces in Tripoli has told the BBC he wants an apology from Britain and America for the way he was transferred to a prison in Libya in 2004.
Abdel Hakim Belhaj, who was then a terror suspect, says he was tortured after being arrested in Bangkok and taken to the Libyan capital in an operation organised by the CIA and MI6.
Details of his case are included in messages sent to the Gaddafi regime by the two intelligence services.
Jeremy Bowen reports from Tripoli.
4 September 2011 Last updated at 22:39 BST
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