It seems to be a policy thing across the nation to have police not live in the communities they police. Part of it I'm sure is some amount of fear of retribution but I think it's really to avoid the officers from developing empathy towards the community members. I recall years ago my roommate working at a fast food restaurant and he advanced to manager level and they immediately moved him from the store he worked at to another to make sure he was more detached with his underlings and it seems like a similar tactic.