Guernsey prison is becoming the first in the British Isles to trial pioneering new technology designed to stop drones being used to smuggle contraband.
UK prisons say they're seeing rising numbers of drones flown over prison grounds, carrying things like drugs and mobile phones.
A new system at Les Nicolles detects incoming drones, and can force them away.
ITV News' Rob Moore has been to see the technology, called Skyfence.
Watch his report here: