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Speeding and other criminal offences / Re: Marginal Speeding Offence - Accuracy of Equipment
« on: June 04, 2026, 12:41:37 pm »
So you 'admit' to 56.8mph in a 50mph limit?
I think you can see where this is heading... (I wouldn't call 13% over the limit as 'marginal')
The very threshold you refer to is to avoid such 'marginal' arguments.
As noted above, a prosecution can succeed for anything over the limit but in reality would not be pursued if it was 1mph or 2mph - most devices may publish an accuracy as +/-1 mph but are actually more accurate than that. Indeed, the cosine effect can actually under report true speed anyway.
You are not going to escape an allegation of 57.3mph on this basis. (Indeed, it's unusual that the allegation is so accurate, it's usually whole mph only)
I think you can see where this is heading... (I wouldn't call 13% over the limit as 'marginal')
The very threshold you refer to is to avoid such 'marginal' arguments.
As noted above, a prosecution can succeed for anything over the limit but in reality would not be pursued if it was 1mph or 2mph - most devices may publish an accuracy as +/-1 mph but are actually more accurate than that. Indeed, the cosine effect can actually under report true speed anyway.
You are not going to escape an allegation of 57.3mph on this basis. (Indeed, it's unusual that the allegation is so accurate, it's usually whole mph only)