Electronic incarceration. He will wear a locked on ankle band with a locater that will alarm if he leaves the area of his home or possibly will be required to phone the police to respond with a code as proof that he is still at home.
My neighbor across the street had that for a DUI. His responder had a port he was required to blow into to prove he had not been drinking.
The civic version of “Trust But Verify.”
What if he has a family emergency?