I don't believe that this is an army function and, without wishing to denounce the police, I don't think that our police force are sufficiently equipped in resource or hardware to deal with the problem.
The fact that some of us member may have served in either the police or armed services doesn't impress me in the slightest, are you saying that you have served in one or the other? If so, does that give you some sort of gravitas?
For the record I have served in neither, I have entered a traveller camp site looking to find a car that I wanted to repossess many years ago and can confirm that I was most unwelcome and, had I found the car, I would have been most unlikely to have taken it back with me. Thinking through the logistics later in the day it was clear that the returns would have never stacked up in terms of resource/risk required.