IMO, this is a 2 edge sword kinda thing. I think it is GREAT for sexual predators sorry, but these are ppl who have no business walking our streets...yep they may do their time but it is proven they WILL do it again, if we are going to let them out....knowing exactly where they are at all times is a wonderful thing. I do see it though as an invasion of privacy, so at the same time it really isn't a good idea, but sorry they do not deserve privacy.
For your run of the mill criminal....robbery, drugs, tax evasion, ect...no I do not see it.