A police force has become the first to use drones to record motorists' poor driving.

Devon & Cornwall Police's drone unit has linked up with its roads policing team in order to track dangerous drivers.

It says it is the first time the machines have been used for road safety.

The force says the flying devices can track vehicles' speeds live using fixed positions on dangerous stretches of road.

They can also video all road incidents - meaning any dangerous or inappropriate driving will be caught on camera.

Officers will then be able to check the MOT, tax and insurance status of any vehicle - quickly allowing stolen bikes and dangerous drivers to be tracked down or even arrested on the spot.