Ok so now let's challenge what trained means, and what professional means, and what observer means, and what regulated means, and what fishing means, and what vessels mean and so on and so forth.
I would be surprised if courts had not already heard and decided cases on the meaning of all those terms. But if they haven’t, then sure I guess they should. But precedent means they would only have to be decided once, not repeatedly litigated over and over as you seem to suggest.