Wary of activating the monitor, many house arrestees begin mentally policing themselves, frightened of stepping out of bounds. “Persons watched become active ‘partners’ in their own monitoring,” probation commissioner Ronald Corbett and social studies scholar Gary T. Marx warned in 1991 as the practice of monitoring began to increase around the country. “The home is opened up as never before.”

— Prison by Any Other Name by Michelle Alexander, Maya Schenwar, Victoria Law (11%)