Drunk Mike |
24-11-05 09:33 AM |
Quote:
Originally Posted by dangerous bri
this is the passage i was refeering to.
http://www.speed-trap.co.uk/Accused_...ge/The_Law.htm
ACPO Guidelines on speeding, and the UK law regarding prosecution.
Vehicle construction and use regulations require a vehicle speedometer accuracy to be in the range of -0->+10%. The implications are that it must never under-read - for obvious reasons - but may over-read. As the cost of manufacturing a speedometer with -0% error would be very costly they all over-read by a few percent without exception. Even if speed is measured correctly the display may not be accurate, so a speedometer error is allowed. Because of this, the Association of Chief Police Officers (ACPO) have an official formula for calculating a speeding offence. It allows a leeway of 10% plus 2mph. In reality, most speed traps are triggered at higher speeds than this because if they were set bang-on those guidelines, the sheer amount of paperwork generated would overrun the police speeding departments.
ACPO Manual bulletpoints.
If you see this little icon next to something it means that the information there is extremely relevant to you if you're about to go to court. It's information from the 1999 ACPO Enforcement Technology National Guidance Manual. When you go to court, this is one of the manuscripts that could be used for reference. I believe that if the authorities wish to give you a fair crack of the whip, then it is only fair that you are well informed about the procedures and guidelines they will be referring to.
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As that passage says, it's still a guideline, albeit an official one.
It talks of the speedo overreading, but never underreading. Surely that means if you follow your speedo, you will never be over the limit. If they can then prove that you were over the limit, logic says that you were doing it deliberately and if you weren't aware that your speedo was overreading, then you thought you were at a speed possibly higher than the one they caught you at.
I don't see how it overreading can possibly be used as a defense against a ticket.
That's how I think it would be viewed, anyway.
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