my brother in law got caught doing 82mph on a 50 zone around 6 months ago
he hired a solicitor and ended up getting out of it due to the calabration of the speed gun not being up to date.
dont know how common that is but if i got stopped myself i would probably ask for proof that i was doing that speed once it was clear i wasnt going to get just a warning.
it would annoy the officers but at this stage they are going to charge you anyway.
i dont know how it stands with speeding, do they need video proof ?
or is it enough that 2 officers agree you where speeding ?
i know they will speed gun you but does that device actually record what car is actually doing that speed ?
must be noted though that my brother in law ended up with no ban etc but did have a £4k solicitor bill