Re: “accredited professionals who act ethically ... to detect and prevent criminal activity."
Exactly, What changes can they make to the law? It's nearly impossible to do without massive ambiguity. Do you leave it to the judges discretion? Do you add caveats and what caveats do you add without leaving it open to abuse? There is no easy answer, you can't prove beyond doubt that what you were doing was for "good" or legally right when it comes to someone else's computer. Logs can be manipulated so won't stand up in court and it would end up as one persons word against another.