It's a fantastic idea. https://en.wikipedia.org/wiki/K%C5%8Dban. A term for police is お巡りさん, "patrolman" (or, as I first read it, Mr. Walkaround lol). They're known for their neighborhood foot patrols as well as staffing the kōban, are very much a part of the community, and in my opinion play a big part in the very safe feeling Westerners often feel in Japan.