Partly true. Yes, more emphasis in those cultural centres, churches, and other sources of community participation is absolutely necessary. But the police can contribute too. Netherland has neighbourhood cops that try to make sure they're known in the neighbourhood. They try to stay in touch with youths who hang out on the street. They try to make sure they know potential troublemakers and vice versa. They build relationships, which means they can talk, instead of just using force to solve every problem.