Net gunA net gun is a non-lethal weapon which fires a net that entangles the target. Net guns have a long history of being used to capture wildlife, stray dogs and aircraft. Recent versions can subdue humans and quadcopters.HistoryThe net gun was invented by New Zealander Colin Brown in 1969 when he tried to sell the police a net gun to capture robbers. His invention took off in the 70s but was only successful in subduing wildlife and dogs until recently when a net gun designed for law enforcement use was invented.