AAATHE 4.Decriminalised Parking  Enforcement  DPE is becoming increasingly common as more authorities take on this  role. The local traffic authority assumes responsibility for enforcing many  parking contraventions in place of the police. Further details on DPE may  be found at the following websites:  Traffic penalty tribunal (outside London)  Parking and traffic appeals service (inside London)  highwaycodeuk.co.uk 131 