The situation is this.
The road is a dual carriageway and I believe it is 70 mph speed limit.
Husband and wife out driving and the husband feels unwell and pulls over on to a hard shoulder. The wife takes over the driving and some days late receives a NIP stating that car was scammed @48 mph in a 40 mph area.
Neither one can recollect as to who was driving as it was not relevant at the time, and are not sure at what point they stopped to change over as other matters had precedent (illness).
The other point is having revisited the alleged 40 mph area, it appears that work is going on, hence the lower speed limit. So do the scamera people have to produce evidence that the correct signage was in place at the time, as it is quite possible that because it is not fixed then it could be moved away quite easily, and the motorist would not then see it.
Your help would be gratefully received.