Found this app interesting especially in light of Michael Brown's families campaign to ensure that every police officer wears a body camera.
http://www.theverge.com/2014/11/...
The app was published by the American Civil Liberties Union of New Jersey to help citizens secretly and securely record interactions with police. It's a neat idea but the app could use some love. It hasn't been updated in some time.
The NYCLU released a similar app called Stop & Frisk Watch - http://www.nyclu.org/app
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