About Justine Thornton
Born 1970. Justine Thornton is a British barrister.
Dame Justine Thornton (born 16 September 1970), styled The Hon Mrs Justice Thornton, is a British barrister and judge of the High Court of England and Wales.
Thornton was appointed to the High Court of England and Wales in February 2019, assigned to the Queen's Bench Division. As a lawyer, she specialised in environmental law.
Early life and education Thornton was born in Manchester to Labour-voting professionals, Her mother was born in Wales, and her orthopaedic surgeon grandfather, who was based in Ammanford, was a speaker on social affairs. The family moved to Nottingham, where Justine was educated at West Bridgford School.
As a pupil at West Bridgford Comprehensive School, she appeared to be heading for an acting career. Thornton was a member of the Central Junior Television Workshop at the age of 16. In 1987 she starred as Erica, a rebellious schoolgirl, in "The Visit", the hour-long opening episode of Hardwicke House, an ITV sitcom that was later pulled from the schedules after only two episodes had been transmitted following a backlash over its content. In 1988, she appeared as "Chrissie" in an episode of the long-running children's programme Dramarama titled "Snap Decision", which was aired in January 1989.
Putting her acting career behind her, Thornton read law at Robinson College, Cambridge, graduating in 1992. She became a barrister in 1994. The 2010 edition of Legal 500, the lawyers' directory described her as "first class".
She was appointed an Advisor to the British Government on Biotechnology and the Environment under New Labour in 2000, a role she held until 2005 and was later on the Attorney-General's C Panel. She was later Chairwoman of SERA, Labour's Environment campaign. She has also acted on behalf of the Welsh Assembly, and in 2009 was shortlisted for Chambers and Partners "Environmental and Planning Junior of the Year".
Thornton was appointed Queen's Counsel (QC) in January 2016, and a Deputy High Court Judge in May 2017.
In January 2019, it was announced Thornton would be appointed a judge of the High Court of England and Wales, with her appointment taking effect on 28 February 2019. She is assigned to the Queen's Bench Division. She was appointed a Dame Commander of the Order of the British Empire in 2019 upon her appointment to the High Court.
Thornton is an honorary fellow of Robinson College, Cambridge.
Personal life Thornton is married to Ed Miliband, a Cabinet Minister and the former Leader of the Labour Party in Official Opposition. They met in 2002, and reside in the Dartmouth Park area of North London. The couple became engaged in March 2010, they married at Langar Hall near Nottingham on 27 May 2011, and have two sons, born 2009 and 2010.
Thornton became a close friend of Frances Osborne, the first wife of former Conservative Chancellor George Osborne, whom she met whilst studying for the Bar in London.
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Important facts
Family & relationships
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Named in this biography and alive at the same time
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Frequently asked questions
Who is Justine Thornton?
British judge and barrister
When was Justine Thornton born?
Justine Thornton was born on 25 September 1970 in Nottingham.
What is Justine Thornton's occupation?
Justine Thornton is a barrister.
What nationality is Justine Thornton?
Justine Thornton is British.
Sources & further reading
· Wikipedia: Justine Thornton
Cite this page
APA: Biography.guide. (2026). Justine Thornton. https://biography.guide/justine-thornton/
MLA: "Justine Thornton." Biography.guide, https://biography.guide/justine-thornton/.
Chicago: "Justine Thornton." Biography.guide. https://biography.guide/justine-thornton/.
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