in reply to trolley, having been a "civvie" and then a police officer, whilst i agree, there are certain posts that can be, civilanised, with training, what most civvies I encountered, don't have is the " policemans nose " call it instinct if you wish, When you have chased villans on foot or vehicle, you get to know, where there going to run or try and hide, what they probably will do next. If you havn't done it, how could you possibly know ?