Body cameras can capture evidence against criminals, with a potentially exonerating or damning record of evidence for law enforcement officers.

In the wake of the events in Ferguson, Missouri, more than 7,000 police agencies around the country have purchased body cameras with the help of federal grants.

Reveal reporters Ali Winston and Amy Walters take a look inside the camera, at the evidence trail left behind. Because where there are a lot of video cameras, there’s a lot of information – and money.

Winston and Walters head to Seattle to find out how Taser International Inc., an industry leader in body cameras, plans to manage this massive cloud of video data.

DIG DEEPER

Julia B. Chan worked at The Center for Investigative Reporting until June, 2017. Julia B. Chan is a producer and the digital editor for Reveal's national public radio program. She’s the voice of Reveal online and manages the production and curation of digital story assets that are sent to more than 200 stations across the country. Previously, Chan helped The Center for Investigative Reporting launch YouTube’s first investigative news channel, The I Files, and led engagement strategies – online and off – for multimedia projects. She oversaw communications, worked to better connect CIR’s work with a bigger audience and developed creative content and collaborations to garner conversation and impact.

Before joining CIR, Chan worked as a Web editor and reporter at the San Francisco Examiner. She managed the newspaper’s digital strategy and orchestrated its first foray into social media and online engagement. A rare San Francisco native, she studied broadcasting at San Francisco State University, focusing on audio production and recording. Chan is based in Reveal's Emeryville, California, office.