The station agent reported a subject at the station who is known to have an active court order barring him from all BART properties. Officers responded and located the subject in the station’s parking lot, and arrested him for violating the court order. A search of the subject, incident to the arrest, revealed he was in possession of altered BART tickets and a switchblade knife. A sergeant responded to approve the arrest and debrief the subject. The subject was then booked into the county jail for violating the court order, possessing altered fare media and for possessing the dangerous weapon.