John,
Post 13 doesn't help. G-INFO doesn't have a matching aircraft. Do you mean its reg ends in the letters SD?
There is no harm in posting an undoctored photograph here for all to see.
Frankly, this sort of event is just another disappointment in the catalogue of woeful behaviour from a minority of people who call themselves pilots but are incapable of exercising the judgement which that term assumes. Almost as bad as the authorities' (and their peers') unwillingness to tackle them.
Peterh, once again your post marks you out. Is common sense not a facet of the human condition in Brighton?