He was appointed to the High Court in 2005, served as a Presiding Judge on the Wales Circuit and Chair of the Lord Chancellor’s Standing Committee on the Welsh language from 2008 to -2011.
Cafodd ei benodi i’r Uchel Lys yn 2005, a bu’n gwasanaethau fel Barnwr Gweinyddol ar Gylchdaith Cymru ac fel Cadeirydd Pwyllgor Sefydlog yr Arglwydd Ganghellor ar yr Iaith Gymraeg o 2008 i 2011.