The police experiment that changed what we know about foot patrol

Girls Court brings an all-hands-on-deck approach to the lives of vulnerable girls, linking them to social service agencies, providing informal Saturday sessions on everything from body image to legal jargon, and offering a team of adults in whom they can develop trust.

The overall graduation rate for black male students in New York City was 58 percent in 2014 - student retention rates are equally poor. But one school achieved a 100% on-time graduation rate last year, motivating their students with a student-founded, student-sustained 'fraternity'.

Colombia has attempted to decrease murder and homicide rates by setting up curfews for teenagers, forcing bars to close earlier in the evening, and creating gun laws to prevent the carrying of weapons. As a result of this epidemiological, data-driven approach, along with other governmental factors, the homicide rate has decreased significantly in most of the cities in which it was implemented.

After a policeman shot and killed a teenage African American, a community in Cincinnati blamed law enforcement for racial profiling and riots expanded throughout the city. With the help of the Department of Justice as a mediator, Cincinnati made policy changes. The city now has an African American Police Association that brings police officers in communication with representatives of communities.

Richmond, California ranked among the highest homicide rates in the country. The city created the Office of Neighborhood Safety to engage the community in the effort to curb gun violence and prevent homicides. ONS works directly with the young people who are at risk and have succeeded in reducing the homicide rate.

Areas of High Point, North Carolina have suffered from crime, poverty, and neglect, until the city began implementing Operation Ceasefire, a policing program that uses data collecting, community support against crime. High Point is now leading the country in its success of Operation Ceasefire, boasting dramatic reductions in violent crimes, domestic abuse, robberies, and drug-related offenses.

LAPD's special team, the Mental Evaluation Unit, is teaming up police officers with mental health clinicians to better approach and address individuals suffering from a mental health crisis. Rather than sending them to jail - where resources are limited and a vicious cycle often results - the teams help ensure patients get the medical care they need, preventing brushes with the law and county millions of dollars and freed up thousands of hours of patrol time. Their model is being replicated nation-wide.

Civic leaders in the U.S. struggle to effectively help their distressed neighborhoods. East Lake, Atlanta, created a replicable model that mixes residents of differing socio-economic status, and focuses on education and health in the area.

A program in Philadelphia is pioneering new ways to treat the urban wounded. By seeing it as PTSD, and not pointing fingers, the city is using mental health tools to decrease violence and heal communities.

In Brooklyn's Crown Heights neighborhood, an organization called Save Our Streets Crown Heights (S.O.S.) is taking steps to disrupt violence. The organization is modeled after Chicago's violence interrupters, which employ people from the neighborhood to connect with those most at-risk and disrupt conflicts and retalitory violence.