“Mae datganoli trethi yn dod â chyfrifoldebau newydd yn ei sgil – ac un ohonynt yw gwarchod buddiannau dinasyddion sy’n parchu’r gyfraith trwy fynd i’r afael â’r rheini sy’n ceisio osgoi eu cyfrifoldebau.
“The devolution of taxes brings with it new duties – one of which is to protect the interests of law abiding citizens by tackling those who would seek to evade their responsibilities.