Well, it's been demonstrated over and over again that the best way to reduce crime is to reduce poverty. Social programs for violence intervention, better education, etc have all been better correlated to long term crime reduction than increased policing. As I mentioned, these things are outside the purview of RPD. IMO, police are better equipped to solve crimes than directly prevent it, so there should be a greater emphasis on that (and coincidentally less blame for failing to prevent it than what OP has given them). If the police demonstrated an actual ability to solve crimes and make people's lives better through that over some of the tactics we've seen in the past (there are good reasons these communities avoid involving police), you'd certainly see more cooperation and better relations between these communities and police in general.