It's not enough
We should also have face recognition cameras everywhere so we know who's where in public. And infrared cameras too so we can see what people are up to indoors, lest they be doing something illegal, and we need to have a way to listen in lest they be plotting.
C'mon, we all know all people are up to no good and the fine upstanding plod need every assistance going to catch the filthy law breaking scum who make up the 'public'.
This has been a public service announcement for the BBC. It all started with their scanners.