It makes me wonder why the government works so hard to get new powers of investigation. It seems easier to catch someone now than it ever has, despite the prepo

It makes me wonder why the government works so hard to get new powers of investigation. It seems easier to catch someone now than it ever has, despite the preponderance of new privacy tools. Using good old fashion police work like warrants, subpoenas, plea bargains, surveillance, etc, police can put together a lot of pieces that add up to a whole (I make a comment elsewhere in the thread about the problem of plausible deniability in the face or corroborating evidence). Why the hell do they need more tools? Perhaps someone in law enforcement could shed some light on this. After all, I am looking at this from the outside.