Fish Poaching: call the MA EPO (800) 632-8075
Never had to call it yet. Call it in and you did your share to help. It doesn't always do you any good to confront the people - leave that to the EPOs.
Some folks may not know its "illegal" - other's don't care.
"there is no excuse for ignorance of the law" - that is what an retired Federal EPO once us in a class in college in 1985. This guy would have arrested his mother. :P