patch.com — WATCH: Cops Used Drone To Solve Brooklyn Standoff - Carroll Gardens-Cobble Hill, NY - Police used a drone for the first time to help negotiate with a man who had barricaded himself into an apartment with an imitation pistol.

dronedj.com — Aerones has developed a drone to wash the windows of high rise buildings. They have also worked on firefighting drones and search and rescue drones.