Police Aviation News is a monthly news journal for the airborne emergency services industry from PAR (Police Aviation Research)...
The Scottish Experiment Aircraft used by the police in the UK 1921-2003 PAR's Listing of Aircraft used in Law Enforcement Sensors - then and now Police Aviation - A History Police Aviation - A Chronology The O'Donnel Theory NPAS Annual Report 2013/2014 Swedish National Police - Bell 429 Delivery Exercise Northumberland - O'Donnell Revisited Policing The Skies Of London Part One Policing The Skies Of London Part Two Cadaver Detection - Research To Assist the Police Airport Support Evaluation Sept-Nov 1989 North Wales Air Support Unit - Profile 1992