The Government is considering relaxing the rules on the use of drones, which a report says could result in a multi-million dollar boost to the farming, forestry and energy sectors. The Callaghan Innovation study on the benefits of unmanned aerial vehicles - UAVs - for use beyond line-of-sight, found they could deliver benefits of up to 190 million dollars a year including better pasture management for grazing, disease detection in plantation forests and inspection of the electricity transmission network.