I am curious why you would want one?? When I was more active in the Harley community, there were always people who wanted ex-Police bikes for the "cool-factor". The vast majority, however, did not consider these good buys. While the bikes were always well maintained, the sometimes low mileage was not representative of light use. The operation time compared to the mileage was overproportionally high due to a lot of idle running. Let's face it, these are work bikes. Would you buy an ex-police car, if you are not one of the Blues Brothers??
Being a retired officer I couldn't agree more. Why would you want to buy a work vehicle? The bike ( no matter the manufacturer ) is no different than a used work half ton, car or any other vehicle. Believe me they do get used up. Their best years are behind them.