麻豆约拍

The Dallas Police stand off ended in an unusual way - with the help of a bomb robot.

Five Dallas police officers were killed during a march against the shooting of black men by police.

The suspect was killed when police used explosives placed by a robot to end the stand-off in a building, where he was holed up.

Chris Hunter is a global authority on counter-terrorism. He explained to Eddie Mair how the bomb robots have evolved over the years, and what they look like.

(Photo: Bomb disposal robot Credit: Getty)