the words LAW and ASS come to mind, go to MAN's viewing park at weekend and 9 times out of 10 its very busy , all the guys(and gals!
) there , and plenty of scanners in visable use, even coppers come ride round have occasional word see what happening like , never once they said owt bout use of scanners,more like 'which one you got?, Is it any good?'. If your sensible with it and not doing anything stupid, your get left to mind yer own business...