to the best of my knowledge there is no "tolerance" for speed cameras in Doha or anywhere in Qatar.

If the sign reads speed limit 80 then 80 it is!

If the sign reads speed limit 100 then 100 it is!

If the sign reads speed limit 120 then 120 it is!

By the way if I am already at the speed limit and there is no space for me to move out of the lane when you flash me, sorry!! I WON'T MOVE!

Regards!!