it sends a radio signal on the same frequency as the drones' control device causing most drones to come back where they took off from. if that doesn't work, the device can jam the drone's gps and force it to land. the trouble is, federal regulations prohibit this type of counter measure without special authorization. >> there's been the swat operation going on, and the uav flying right into the front yard and watching as they're approaching the house, putting their safety and safety of those in the community at risk. >> drones are an emerging technology. and as such, they're coming in to a regulatory arena that's not yet fully developed. >> senator mike lee along with on her lawmakers introduced a bipartisan bill that would give local governments the power to regulate in their own regions for drones flying 2u7bd00 feet. >> so unfair that a citizen, a criminal or terrorist, can use uav technology. but we cannot use technology against them.