above board (idiom) - completely honest and legal - ซื่อสัตย์และถูกต้องตามกฎหมาย Articles found: Nate won't face 'Boss' case probe (19/08/2020) Deputy AG who dropped Red Bull case quits (11/08/2020) Police job-buying: Taking the issue seriously (14/06/2017) Submarine deal gets auditor's approval (23/05/2017) Koh Tao murders: Police respond to their critics (updated) (07/10/2014)