On 14/08/2016 21:55, Andrew Gabriel wrote:

It is an offence to have it SORNed on the public highway, but
DVLA doesn't seem to care anymore, unless perhaps it's being driven,
as the council told the DVLA who did nothing.

All they do is issue a charge to the registered keeper.
If he pays it then what else should they do?
I don't know how often they can repeat the charge.