Columbus Police released body-camera footage after an officer punched a civilian in the throat, giving more context to a cell phone video that went viral on social media.
These cameras can both clear officers and expose behavior that they would like to keep hidden.
Roughly half of the 18,000 law enforcement agencies in the U.S. now employ body-camera technology. Many of those programs are pilots, and the expense is a barrier for many others.
Today on All Sides, how technology is changing the job of policing.