From Channel 5 in St. Louis:
A young woman took out a protective warrant against her ex-boyfriend, Derrick Harris.
Harris showed up at the courthouse for the hearing. As Harris pulled the subpoena out of his pocket in order to ask directions to the courtroom, a baggie also came out of his pocket and fell to the floor.
A deputy picked up the baggie and found that it contained marijuana.
Deputies escorted him to the courtroom for his hearing. His ex-girlfriend had failed to appear, so he was released from the hearing, at which point he was arrested for possession.