Secret Cameras Record Baltimore's Every Move From Above

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.

The California prison system is overwhelmed after adopting tough-on-crime laws with no improvement. New York adopted more tolerant policies and has decreased the state's crime rate and its prison population.

In Houston, TX, many individuals with mental illnesses cycled in and out of emergency care while arrested or incarcerated. Houston’s police department has decreased the number of incarcerated who have mental illness by opening a division to mental health called the Chronic Consumer Stabilization Unit. Now Milwaukee seeks to replicate Houston’s results.

Milwaukee County’s mental health system put more resources in expensive emergency care rather than invest in programs that offer continual care. As a result, Milwaukee County identifies nine solutions from other cities that have had success in repairing mental health systems. Solutions include the ending of reliance on emergency care, expand community support programs, change laws, and supportive housing.

The militarization of police forces in cases such as Ferguson, Missouri’s riots has led the state of Utah to question what can be done to prevent such an overuse of force from happening. Utah expanded upon a law passed by Democratic legislature in Maryland, which Utah’s ACLU reworked with some libertarians, to require the police to provide data about SWAT team usage. Utah’s success demonstrates that demilitarization bills passed with bipartisan support are not impossible.

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.

Rampant misconduct by judicial systems across the country brought to light a crippling practice of debtors' prisons—where disadvantaged individuals unable to pay fines and fees were continually and wrongfully imprisoned, creating a vicious cycle. The American Civil Liberties Union stepped in to work with governments and private companies to increase transparency, eliminate abuse, and reeducate law enforcement officials. The state of Ohio has emerged as a leader in reforming debtors' prisons, though there is still work to do.

In Iowa, the “redistricting” of the state’s legislative and congressional boundaries is done by mapmakers who abide by nonpartisan metrics that all sides agree are fair — a seemingly revolutionary concept in the high-stakes decennial rite of redistricting.

The Center for Applied Nonviolent Action and Strategies provides a "blueprint" for peaceful and democratic revolution, busting myths about the process of nonviolent revolt and helping dissidents in countries around the world to accomplish political goals, such as fighting corruption or protecting the environment.

Two columns on how Iran is treating its massive epidemic of injecting drug use by tackling it as a health problem, effectively lowering H.I.V. rates among drug users using an approach to drugs known as harm reduction.