In the spring semester of 2016, I taught a seminar in the Harvard History Department called The History of Policing in the United States. It was a wonderful experience, chiefly because of the brilliant and hard-working students. In one of the first weeks of the seminar, we read the famous "Broken Windows" article by George Kelling and James Q. Wilson from The Atlantic Monthly, published in 1982, as well as a critique of it published soon thereafter by Samuel Walker in Justice Quarterly. Over the semester, the class discussions continually referred to issues these articles raised, about police tactics, police philosophy, police reform, and the uses of history to shape, legitimize, and critique policing.
As I was preparing for our initial discussion of these readings, and because I was also writing a short article on broken windows policing at the time (in Harvard Design Magazine), I found it necessary to do some parsing of muddy terms. The terms are Broken Windows, Quality of Life, Zero Tolerance, Stop and Frisk, and Order Maintenance.