So the new generation speed cameras use an infra-red flash instead of the old-style orange flash.

The IR flash is supposed to be undetectable by human eyes so you don't know if you've been photographed or not.

However, I find I can see the flash quite clearly (I can also sometimes dimly see the IR pulses from certain remote controls too, so clearly I have freakish eyes)

Thing that has bothered me a lot since the introduction of the new speed cameras is that when I pass one on the Porirua motorway, I am *always* photographed. Regardless of what speed I am doing. And due to traffic density on that road, I am usually well *below* the speed limit.

Why, then, am I being photographed?

The only conclusion I can draw is that they have experienced some scope creep from their original mission of speed enforcement, and are now being used to compile a database of vehicle movements.

Do these cameras now look for stolen or unregistered cars as well as speeding ones, perhaps?

Be nice if they'd tell us, rather than hide behind the assumed undetectable nature of their cameras.