Altough I am but a mere civilian in this thread, the area where I live contains the one of the largest areas in the Uk covered by the local Contstabulary, they have as most of us know(who live here) a severe lack of feet on the ground or even spare vehicles just to patrol the area, to give you some idea of scale the distance between the two farthest points is something like 45miles, to actually drive this route can take around about 1 hour plus, ok put your blues and twos on and this may come down to about 50 mins, but this point to point can be covered even in the humble twitchy R22 in something like12 minutes, I once in my eager early flying life wrote to our Chief Constable( a lady) to expound this theory, I think my letter must have got lost in the post.
But to me, it would seem a resonably good idea to have something light cheap and easy to use, and leave the bigger Limo's to do the really combative work!!