Called insurance company who rectified mistake and said to ask the police to call them to confirm the vehicle would have been insured. Went to the police station in my local town and the receptionist was not very helpful and said she would just send the original and new insurance certificate off for them to decide.
Not happy with that so called Derbyshire constabulary and spoke to ticketing who were extremely helpful, took all the details etc and contacted the officer in question. Received a call back stating there would be no further action taken. Huge relief now that this has been resolved