good evening, went past a sneeky bugger arive alive van today on the Dual carrageway, when i saw the b*****d i was doing about 77mph maybe 76 or 78 about that, i was coming around a bend when i saw it, i then slowed down to about 65, when i spotted it it was about 1 6th of a mile away, so the question is, can they get your speed around a bend, could it calculate my speed in literally a second or two, is 77mph enough to get a fine? how long do they need to time you before they get an avergae speed. cheers! just dont want a damn speeding fine, ban the damn things just another way of sponging money of people grrr cheers