The devices used to register speed have varying degrees of error

( willenium Fist bump for verification, Mon 24 Sep 2012, 14:01, 2 replies, latest was 13 years ago)

yes.
But the margins are much smaller than the leeway you are given above the speed limit.

And people who try and use shit like this to get off something they are demonstrably guilty of are, frankly, cunts.
( the mighty badger Aphrodite, on a bar stool, by your side, Mon 24 Sep 2012, 14:03, Reply)

do you mean leighway, tmb?

(quintsy, Mon 24 Sep 2012, 14:11, Reply)

no, I'm pretty sure I mean leeway.
as in from the space allowed for ships to drift. But I could be wrong, wouldn't be the first time.
( the mighty badger Aphrodite, on a bar stool, by your side, Mon 24 Sep 2012, 14:16, Reply)

lee·way/ˈlēˌwā/
Noun:

The amount of freedom to move or act that is available.
Margin of safety: "there is little leeway".

Also has 7.7 million google hits compared to 132000 for leighway which appears to be a place in or near Staines.
( The Light in Chains don't touch the Pope's boner, Mon 24 Sep 2012, 14:19, Reply)

The A436, renamed after Lee Donovon was tragically killed in a bizarre white van/veal truck accident
4 eva in R hartz
( Naked Ape call me Caitlyn, Mon 24 Sep 2012, 14:22, Reply)

*cough*BOLLOCKS*cough*

(Bazongaloid, Mon 24 Sep 2012, 14:03, Reply)