Extra policing was part of the problem that led to the gangs. Extra policing targeted at an outgroup means every issue big or small is met with violence and imprisonment. The paternalistic overuse of the criminal justice system leads to the people losing trust in police and in the system. They still need someone to provide community structure, to settle disputes, and to offer some degree of protection and gangs are the homegrown solution to fulfilling that need. Extra social workers and community organizers that are from that community would do a lot better than extra police.