My take on this.
Like a lot of people I meet, this chap seems incapable of distinguishing between 'the' law and 'his' law. His opinion, although doubtful and based upon shaky logic, is valid in that it is an opinion, to which anyone is entitled. However, just because he thinks it should be so, doesn't make it so.
Given the evidence as presented so far, albeit with the usual media spin, I would have no difficulty in finding him guilty of the charge.
Further, being an experienced appeal Court Magistrate, I am satisfied that his case would fall at the first hurdle, should he continue in his stated course of appealing the conviction.
Personally, I don't believe a word of his story. His statements just don't add up and any prosecutor worth their salt would tear his story to shreds. In my view, he was just doing what a lot of people do as a sort of private vendetta and sign of disapproval and I make no comment as to my own views on the actions he took. BUT, by his pig-headedness, he dropped himself in the poo when he was given a way out.
What he is doing though, is wasting a lot of time and money both for himself and for the Courts, in pursuing his case. Regardless of whether anybody thinks his actions were right or wrong, he is wrong in law. He convicted himself by his own statement.
I deliberately make no value judgement on his actions. Each to his own opinion
I heard Quentin Wilson making his usual and unsurprising comments this morning and took the trouble to research the High Court case he quoted regarding a lorry driver. As usual, Mr. Wilson never lets the facts get in the way of a damned good excuse to have a pop at speed cameras and, true to form, he conveniently chose to misquote parts of the case and miss out the inconvenient bits altogether.
As to whether the prosecution passed the 'Interests of justice' test...