You may have heard about body farms, the research facilities where people donate dead bodies for scholarly research. But have you ever wondered what goes on in these places? What exactly are scientists doing with all these donated bodies? What mysteries are they trying to solve, and why?

Sgt. Ryan Wisniewski, part of the San Diego County Sheriff's Department's UAS (unmanned aircraft system) Unit, spoke with A&;E True Crime about how drones are used by—and against—law enforcement today.