Watch police contact the YouTube shooter the night before her attack

The Mercury News obtained and released a 30-minute captioned bodycam video of police interacting with Nasim Aghdam as she slept in a Walmart parking lot a few hours before shooting three people and killing herself at YouTube headquarters. Read the rest

Study: with body-worn cameras, complaints against police "virtually vanish"

Complaints against police dropped by 93% when they were wearing body cameras, according to a University of Cambridge study that examined 2,000 officers in the US and UK. Read the rest

Study: bodycams increase some fatal police shootings

"Use of wearable video cameras is associated with a 3.64% increase in shooting-deaths of civilians by the police," according to a research paper from Temple University. Here's where this research gets more interesting:

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Two top police body camera makers are locked in an epic patent battle

Two of the most prominent makers of body-worn cameras for cops and first responders are fightin' it out over patents.

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