When I was working on the meter inspection I got a NIP roughly a year after the claimed offence.
It came in a letter from our legal department, the speeding offence was on a dual carriageway on a Cambridge ring road, the particular stretch was restricted to 40 MPH at that time, and I was said to have been doing 60!.
The legal team were saying the company had owned this vehicle, and I had driven it, (along with many others in the area) so I must pay up.
Having dug into the computer system, I found I had driven that vehicle that day, it was the day we changed vehicles (end of lease) for the new ones.
On changeover days a transporter with new vehicles on would travel to each area, we would all meetup with it, take the new, and leave the old but on this day the transporter was moved on by the police, and had to move to another site, no one thought to ring me, so I drove it from home to the first site which was a side road off the ring road very close to the camera.
Eventually, someone called me, I would have turned from the side road, left onto the dual ring road and past the camera, no way would that old crock accelerate that quickly.
To get it to 50 you would need a packed lunch.
(The leasing company charged for a new Variable Inertia Flywheel once they got it back.)
I ask the legal team for the photographs, they had not got any, I asked the Cambridge cops, they first said they had none, I explained without pictures how can I be sure it was me or even that vehicle?
One, picture turned up, with me in the LH lane, and a car overtaking in the RH lane.
I now explain all that proves is, I passed that camera at that time, where was the other picture?
From the two pictures I could workout my speed as (rounded) to 36 the car worked out rounded as 61.
I got a blasting from our legal lot for antagonising the police, my impression was the police wanted it forgotten as quickly as possible.
Actually I say police I don't know if the people I corresponded with were officers or civilians.
I eventually got the full story, I was told the returned vehicles were inspected for damage, mileage, tyre condition, and service history.
Anything that would reduce the estimated price at auction was charged to our company, and the cars were then shifted of to auction.
So the NIP had gone to the leasing company as the owner, at first they could not locate the car on their records, as it had gone through several leasing cycles. (no one remembered to take it to swap)
It eventually came to light, when the leasing Co were being threatened with court action due to the flywheel fault. (misrepresentation?)
In making an effort to establish it's history they found where it had been, our legal lot then received the the NIP, and someone thought I was the last one to drive it.
So, there was one that fell through the cracks but in the end it didn't.