TIM77. 1. I have always said no - other peeps have said yes - they do work i both directions even though they may be facing towards you. In which case, I say - Why paint lines both sides of the camera? And why pay someone to come and turn the camera in the opposite direction every to often, if it can pick up speeding drivers both sides of the road.
2. Is a tricky one and depends on where the camera is. For example, if it is on the M6 then yes, it would be well stocked, and stocked regularly. Don't forget that the Gatso's have the old film roll in them and they do run out. Whereas the new Digital cameras, never run out as the images are digitally sent to the processing place.
Either way - you will know within 4 weeks. Personally - I say if you haven't heard anything within 2 months - then there is an extremely strong possibility that you weren't caught.
PATCH: What people don't realise is that those cameras (Hand held or static) can zap you speeding and record your speed long before you see them. Also, if it was a handheld Laser speed camera used by a police officer - and they didn't come after you, then you haven't been caught.
I believe you all know my views on speed cameras? I must be the only one that is all for them? More so the hand held ones. Gatso's - everyone knows where they are, slow down to pass them and speed off again.
Exbdc. The tolerance is 10%. (Not + 2mph too).