What can a Police officer use to corroborate his opinion that I am speeding?
When a policeman states that he thinks you were speeding this is merely his opinion that you were speeding. In order to be convicted a police officer must also provide evidence which corroborates his opinion that you were speeding. Speeding is the only offence under English Law which requires evidence of corroboration. This can be done in a number of ways.
The most usual corroboration is by way of static or mobile camera or hand held laser, but a police officer can also use his own speedometer in his vehicle to corroborate his opinion that you are speeding.
It is also sufficient in law for a second police officer to corroborate the evidence of another officer. Therefore if two police officers provide evidence that you were speeding then this is sufficient to convict.
However, these corroboration requirements do not apply with Motorway speeding offence.
With the right expertise it is possible to challenge evidence of corroboration.