Sir James Dingemans practised at the Bar appearing in cases involving constitutional issues, including written constitutions from the Commonwealth, international arbitrations representing developing countries, public inquiries, administrative law, overseas and catastrophic injury cases, and general common law cases.
He was Chairman of the International Committee of the Bar Council from 2009 to 2012 and he was a member of the Executive Committee of the Commonwealth Lawyers’ Association. He was a Presiding Judge of the Western Circuit from 2014 to 2018. He is a member of the Council of the Commonwealth Magistrates and Judges Association. He was appointed to the Court of Appeal on 23 October 2019.
Lord Justice Dingemans was appointed Vice-President of the Queen’s Bench Division for a three year term with effect from 5 February 2020.
Lord Chief Justice has since appointed Lord Justice Dingemans as lead judge for International Relations. His appointment, which took effect from 26 February 2021 for a period of four years, follows the appointment of his predecessor, Lord Justice Flaux, as the Chancellor of the High Court.