Small island prison first to install anti-drone 'forcefield'

Prisons have a drone problem, in that they're being used to fly drugs and other contraband over walls and into the hands of inmates. Dealing with these airborne mules is tricky because you either need to hope they crash or catch their operators in the act, but one prison is taking a more proactive approach to stopping undesirable deliveries. Alongside other security upgrades, the small, 139-capacity Les Nicolles Prison in Guernsey, Channel Islands, is said to be the first in the world to receive an anti-drone fence. It's not a physical barrier, but an invisible wall that jams pilot signals and stops drones from passing beyond its threshold. Two British companies, Drone Defence and Eclipse Digital Solutions, adapted existing jamming technology to create the "Sky Fence."