Professor Peter Vaughan was appointed Chief Constable of South Wales Police in 2010 and retired at the end of 2017, after 33 years police service.
Cafodd yr Athro Vaughan ei benodi’n Brif Gwnstabl Heddlu De Cymru yn 2010 ac fe ymddeolodd ddiwedd 2017, wedi 33 mlynedd o wasanaeth gyda’r heddlu.