A supposedly clean Blake Fielder-Civil was caught smoking heroin in his prison cell hours before wife Amy Winehouse begged for his release.
The Sun (UK) obtained pics showing him heating the drug on foil before inhaling fumes through a tube - known as "chasing the dragon."
The skinny, pale drug addict, who had claimed to be off the horse, is also seen squatting on his cell toilet as he prepares his stash.
Blake Fielder-Civil took his fix in London's Pentonville Prison hours before Amy's pleas for his freedom during her shows in Glastonbury.
Blake Fielder-Civil doing what he does best.
The junkie, who has been writing some sleazy sex letters to female inmate Melissa Goldstone behind Amy's back - will be sentenced on Thursday after his guilty pleas for perverting justice and assaulting a bartender.
Blake had claimed in those letters that he wants to he was not taking drugs - though he was still planning to get high once he got out of prison.
He also detailed his fantasies of the things he wanted to do to Melissa Goldstone, such as choking her and bending her over... you get the idea.