Police body cameras are a recent addition to many police departments around the country, and for good reason. With every citizen carrying a camera and social media able to spread news worldwide in a heartbeat, an ill-advised action on the part of a police officer - or something that looks like it - can go viral and lead to serious problems.
Is recording a police officer actually illegal? I give you the answer here.
At that point, it's the police officer's word against whatever partial footage was captured and spread. A police body camera can catch the entire incident from the police officer's point of view and show exactly what happened.
If you want a look at the technology behind police body cameras, and why they're going to be hard to get everywhere, click here.
Still, more than half of the major cities in the U.S. either have body cameras or plan to get them soon.