I was driving home today and the satnav warned us about driving over speed limit (74 mph on UK motorway). Ok. But the solution to that is technology - and organisation. There are speed cameras on this road. But most of the time they don't take images or don't trigger an action. If every road camera triggered a warning / fine on every violation then speeding would stop in a few months.
Is that something socially beneficial ? Probably. Would it be disruptive and cause great anger and political resentment? Yes.
That is one tiny example but I think that pretty much every criminal act can be detected with technology - it's going to become which one we care enough about to prosecute and which we give up and decriminialise?