Police on A40

Heading towards London, just after the Denham/m40 junction there is a speed camera in the middle. On the bridge just before this there seems to quite often be police on top with speed cameras. Not normally too much of a worry on the bike, but when they are there the area is patrolled by traffic officers!!

Just a heads up, theyve been there the last few fridays on my way to the Ace!