In article ,
John Rumm wrote:

You will also have false positive problems as well to deal with.
What happens when a fine drops through your letterbox for
driving a vehicle that you have created a SORN notice for simply
because the system misread a similar plate incorrectly?

Wasn't there a congestion charge levied on a classic
car in a bristol museum, clearly permanently off-road.
Afair the law was written such that the museum was
forced to pay the fine anyway, then had the expense of
trying to reclaim it.

--
Tony Williams.