How long does a mobile speed camera have to track you for, before it can varify your speed?

Question

I spotted the roof of the mobile police speed camera van as I came over the hill and hit the breaks quickly. Does the camera take a reading of your speed instantly or does it need to track you over a second or two or a certain distance?

Answer 1

it tracks you instantly. sometimes they pull you over or they will scan your number plate and send a fine to the address the car is registered to i think.

Answer 2

Your average speed over a certain distance is

recorded, it maybe something like 200 yards.

You cannot be prosecuted over a short distance

ie 35 yards or so.

there could be a legitimate reason for speeding over

a short distance.

(accelerating to avoid a hazardous situation)

Answer 3

It tracks ur speed right away as soon as the cop thinks ur goin fast he will point the camera at you if ur over the speed limit he will pull u over if he cares.

Answer 4

Usally they track you over a certain distance,but there if you was just goin over the speed limit when u approached the van then its more than likely your fine cus say u were goin at 33mph the camera always detects the speed your goin a bit less so it will prob come up as 30mph.if u was goin over 35mph then theres a possibility u mite b fined.Ive been in a similar situation before but got away with it.