Comment: What's needed here is the same catch-all law traffic cops get to use when they see someone driving in an unsafe manner or otherwise doing something stupid - but which is not specified in the law. 

Not that I disagree that there should be laws about trapping - I would prefer it be banned outright, as it's against all moral and ethical law - but there should be an add on to keep trappers in line.

You don't get exclusive use of the outdoors. If you want your own trapping domain, buy some land and practice your sick, bloodthirsty, unbelievably barbaric, psychopathic past time there.  As far as I'm concerned, if you can do what trapping does to any living creature you're in the same class as a serial killer. 

All trappers should be required to register publically so decent people know where they live and can take steps to keep their families - including pets - safe from them.