“Quick Question On Speed Camera Boxes”

I guess you've all seen these !

So some questions

1> Do they flash ? when they take the picture or are the infra-red

2> IF they don't flash does that mean there not working ?

3> Do they have a "speed tolerance" so how much over the posted speed

4> Do tickets come pretty quickly in the post

5> Can they cover "both" sides of the road and in essence flash you in the face ?

There's a 30 near my house, depending on my route I usually miss it, but have been absentminded and gone past around 40, but never been flashed.

In the UK, they cant do front flash, though I think they were experimenting with a red flash cover for front facing.

Thoughts

I can tell you that I got a ticket for just 9 over, and it took a few weeks to arrive.