Early in the seventies I was involved in the programming of an ABC affiliate TV station in Boston (Channel 5). I was given the opportunity to make what I called "non commercials" to be shown between programs just like a conventional advertisement but consisting instead of a 60 second look at a commonplace social activity. Policeman was one of several such "non commercials" that aired on this station to many peoples' astonishment.
Released in 1973, Policeman is a documentary film (US). It was directed by Robert Gardner. With a runtime of 1m, the film is available in full HD.
MyFlixer streams Policeman in HD from several servers. Click Watch Now, select a server, and enjoy the full movie without subscriptions or pop-up sign-up forms. If you like documentary movies, Capital in the Twenty-First Century, Directed by John Ford and Come See Me in the Good Light are worth adding to your list.