Brooke Tapsall, CEO at DroneALERT, on the state of counter-UAV measures, today vs. the challenges of regulating drones across a huge range of jurisdictions, and the potential of a crowd-sourced, global drone (incident) database, as a critical tool to fill the “evidence gap”, as authorities from regional police forces, civil aviation, the military, and others race to mitigate the increasingly high cost of illicit drone incursions