Lowery said the Army’s testing revealed that the system can down drones without disruptingcellular signals or the navigation and other systems of aircraft, particularly if the aircraft is at high altitude. It also can be aimed at a very specific area of the sky and de-conflicted with air traffic control or even other law-enforcement drones.

As a flurry of possible drone sightings have triggered local politicians to press federal officials for more information, lawmakers have proposed a variety of different methods for dealing with drones.