Under the Road Traffic Act 1991, the Secretary of State for Transport made Special Parking Orders, permitting councils to enforce contraventions of parking Regulations within a designated Special Parking Area. Such contraventions are not criminal offences, but are enforced through civil procedures. Thus they are said to have been "decriminalised". Bus-lane contraventions have not been decriminalised. While they may be enforced by a council through the civil procedure, they may also be enforced by the police through criminal proceedings. If the police begin criminal proceedings, the council cannot enforce through the civil procedure.