You will often see ex Police Vehicles listed on EBay. Most Ex Police vehicles are sold through auction although the Police sometimes lease there vehicles as well. Police vehicles tend to be well serviced but dont be fooled by sellers who intimate that because a vehicle has been well serviced and driven by Police officers that it will be any better (or worse) than anything else out there! You will generally get a comprehansive service record BUT be aware that many of these vehicles have had a very hard life and are used 24/7 by mulitple drivers. Many may have been involved in accidents and have had some major bodywork repairs-sometimes more than once! This may not be apparent from the servicing information. 

In summary-buying ex Police car-Buyer beware!