I agree. Might as well try “officer wasn’t wearing a hat with a white cover” or “I’ll just chew on a 2p coin before I’m breathalysed” ....
The police will have seen & heard it all before.
OP, you MIGHT just find a loophole. It will likely cost you dear to keep trying. You have the absolute right (“innocent until proven guilty”) to try, but together with that right comes the responsibility of the more severe sentence if you don’t succeed.
I thought you said you admitted being the driver ("I signed my name that i was driving")
I'm intrigued. How do you believe the camera calibration would help you identify the driver?
Just as an aside, camera calibration is rarely of any assistance defending a speeding charge. It seems to be a popular pub myth that asking for it helps the driver or hinders the police in some way.
Shocking pictures reveal ‘disgusting’ conditions inside Hermes depot where workers ‘feel like slaves’. Read more at https://www.consumeractiongroup.co.uk/topic/419726-shocking-pictures-reveal-%E2%80%98disgusting%E2%80%99-conditions-inside-hermes-depot-where-workers-%E2%80%98feel-like-slaves%E2%80%99/
Euro Car Parks issued this ticket to the police in Devon and Cornwall. Read more at https://www.consumeractiongroup.co.uk/topic/419522-can-anyone-identify-the-parking-company-which-issued-this-ticket-to-the-police-in-devon-and-cornwall/