FRONTLINE and The Associated Press investigate deaths that occurred after police used tactics like prone restraint and other “less-lethal force.” The documentary and accompanying reporting draw on police records, autopsy reports and body cam footage, offering the most expansive tally of such deaths nationwide. "Documenting Police Use of Force" premieres Tuesday, April 30th on PBS. | FRONTLINE | PBS

Watch FRONTLINE Investigates

Frontline: Policing the Police