This morning, 10th August 2024 I received a NIP from Hertfordshire Constabulary for my vehicle allegedly traveling at 80mph in a 70mph motorway limit on the M25 at Junction 21A-22 at 10:37:56 on 3rd August 2024. Supplied with the NIP was an Offence Viewer Log On Help Sheet, providing access to evidence including a speed camera configuration report and photographic evidence of the alleged speeding offence.
However, I remember this journey well as I was headed to pick up my family from the airport and was ahead of schedule so was not speeding at all on this journey and did not go above 70mph as it would have got me there too early. Unfortunately my dashcam doesn't record speed, but I understand it wouldn't be sufficient as admissible evidence against the speed camera anyway.
Nevertheless, I have read this:
http://www.pepipoo.com/Inaccurate_speed_cameras.htm and wonder if loud music in my or the adjacent vehicle or the adjacent vehicle itself could have impacted the reading? Obviously I cannot measure the exact distance traveled in the alleged 0.35 seconds the photos were taken apart on the M25 to get an exact distance covered in that time, but if I was traveling at below 70mph, what can I do to demonstrate it?
Evidence viewable here due to issue uploading directly:
https://imgur.com/a/rYB4KOf