Not recently, but a few years ago about 5 of us were out rabbiting legitimately on the Thetford training area with shotguns. 3 coppers turned up and had us put our guns on the ground before approaching us (they weren't armed, so couldn't have been that concerned). The one who was in charge asked us for I.D. and we all showed him SGC's and military ID cards and told him we were cleared through HQ. He still frisked us, Even the female PC remarked "that's going a bit far isn't it boss?"