In 2014, a white police officer shot and killed unarmed 18-year-old black man Michael Brown in Ferguson, Mo., outside St. Louis.

What followed were nationwide protests, the Black Lives Matter movement — spurred on by other police killings of African Americans as well — and a call for cops to wear body cameras.

The technology was not new. But the events that unfolded in Ferguson took what used to be a relatively rare piece of hardware and turn it into what is now a booming market and one of the most important trends in law enforcement and surveillance technology today.

Here we will dig into the data at our disposal to illustrate how we got here, what the market currently looks like and where it might go in the future.

The Past

The Present

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