Pete Doherty had a run-in with police just hours after leaving rehab yesterday. Officers fined the troubled Babyshambles singer $200 after he threw trash from a taxi window in London's Regent's Park.
Police stopped the blue minicab to question Pete and ask him for proof of identity at around 12.20pm.
A source said: "He looked pretty sheepish about getting into trouble for something so stupid."
"The policeman gave him a stern telling-off, then issued him with a fine."
On Sunday night, Pete checked into North Yorkshire's Detox 5 clinic, in Harrogate, wearing two trilby hats. Just minutes later, Pete's luggage was packed into a car and he was driven away.
Pete's visit to the clinic is believed to be the start of the five-day detox program a judge ordered him to attend earlier this month.
He was told to enter rehab or face a jail sentence after being found guilty of possession of crack cocaine, popular club drug ketamine, heroin and cannabis in May.
Pete - who was recently dumped by fiance Kate Moss - also confessed to driving without a license and failing to appear in court.
District Judge Davinder Lachhar deferred sentencing until August 7 so his rehab stay can be reviewed. The 28-year-old musician's lawyer Sean Curran revealed Pete's $6,000 detox program would begin on MondaY, adding: "Pete has been in Harrogate over the weekend but I believe he is now back in London."
Pete's bandmate Mick Whitnall was also driven to the Harrogate clinic yesterday.