The North Dakota House has approved a bill placing limitations on the use of unmanned aircraft. The measure requires that law enforcement obtain a court warrant for using a drone for surveillance in a criminal investigation. Unmanned aircraft could be used for testing and training as well as in weather related damage assessment and to patrol the nation’s borders. The issue sparked debate on both sides of the issue. The final vote was 60-31 in favor of the restrictions. The bill still needs to be considered by the senate.