How stupid do you think I am?
I had a long discussion with both officers and did raise the issue of gatherings and not meeting with more than one person from outside your own household (Regulation 7 as they told me). Both officers, independently, told me that in their opinion holding fishing matches was NOT, repeat NOT illegal as long as Social Distancing guidelines were adhered to. So it is not at all clear to them that matches ARE illegal.
I don't think it would have helped for me to act as a Barrack Room Lawyer and explained that they, the enforcers of the law, had made an error in their interpretation. I am sure they would be interested to hear you tell them that they are wrong. My conversations were the result of my raising a query that was dealt with under reference URN 206 15/05/2020. I'm sure if you contact TVP and quote that number they will put you in touch with the inspector and sergeant I spoke with. You can then use you legal training to convince them the error of their interpretation and application of the law. My own legal training only extend to courses in contract and banking law passed as part of my professional qualification. Law was not part of my university degree profile.
I'm sure your superior intellect will carry the day and TVP will change their stance due to your expert knowledge.