Hefyd, bydd gan yr awdurdodau cenedlaethol hawl i gynnal archwiliadau os ydynt yn amau bod eich trosglwyddiadau'n gysylltiedig â throsedd (e.e. trosglwyddo cyllid er mwyn cuddio ei ffynhonnell).
This means that if you have a valid driving licence issued by a Member State of the European Union it will be valid, throughout the EU, for the class or classes of vehicles for which it was issued in the Member State of origin.