[simoncion]

> (Ankle monitor?)

I'm aware of a guy who was in house arrest for a while. Apparently ankle monitors false alarm so very, very, very frequently. And every time they do, the officer (whether of the court of of the law) who's in charge of monitoring you needs to get involved to ascertain that yes, you are still at your house, and yes, it is the shitass lowest-bidder carcerial-system trash that's faulting _again_ and wasting everyone's time and energy, and no, you are not getting cute or clever and wasting everyone's time by running away, or tampering with your shitass anklet.

Long story short, some entity who actually gave a shit (and also wasn't gunning for you to replace it with a new model every three years) would need to build any such device.