Information about the association between drink driving and accidents, results of breath tests of drivers involved in accidents and enforcement action relating to drink driving for 2017.
Gwybodaeth am y cysylltiad rhwng yfed a gyrru a damweiniau, canlyniadau profion anadl gyrwyr mewn damweiniau a chamau gorfodi sy'n ymwneud ag yfed a gyrru for 2017.