I'd give people small radio transmitters that could be used by the denizens. I'd setup thousands of receivers mostly saturated around high density population areas. I could then triangulate the population's movement in real-time down to the individual.
The transmitters would be fitted with microphones and would store their conversations remotely so authorities could later use that information.
But heck, now we're getting into science fiction. LOL.
I'd give people small radio transmitters that could be used by the denizens. I'd setup thousands of receivers mostly saturated around high density population areas. I could then triangulate the population's movement in real-time down to the individual.
The transmitters would be fitted with microphones and would store their conversations remotely so authorities could later use that information.
But heck, now we're getting into science fiction. LOL.