The idea of Tokyo law enforcement agencies to introduce drones to intercept intruder drones near protected objects using a network was liked by engineers at the University of Michigan. American experts have developed a more advanced system that they intend to patent. According to the idea, the patron drone, which is responsible for the safety of airspace over the protected area, fires a large net at high speed towards the offender. According to the developers, even the smartest drone will not have time to deviate. The maximum shot distance is 12 meters. An intruded drone intruder is taken by an interceptor to a safe or planned landing zone, which is highly justified given that UAVs can transport drugs, weapons, explosives and other prohibited items. An intruder drone shot down in the usual way can be carried away by intruders or detonated if there was explosive on board.