Actor Brad Renfro has been found in violation of probation after failing to enrol in a drug treatment program - following his conviction for attempted possession of heroin. A Los Angeles Superior Court Judge and LA Deputy District Attorney warned Renfro in court on Thursday (28Jun07) that if he fails to enrol in a 18-month to three-year outpatient program he could be jailed. He has been given two more chances. If he violates for a third time he can be sentenced to a live-in program or a jail sentence, reports The 24-year-old pleaded guilty to the charge of attempted possession in February 2006 after he was caught in a police sting in December 2005.