Sean Humber > Leigh Day > London, England > Lawyer Profile

Leigh Day
Sean Humber photo

Work Department

Human Rights.


Sean acts for individuals and campaign groups in a wide range of human rights, discrimination and environmental law matters. He specialises in prison law matters and has acted for inmates in judicial review challenges and compensation claims for clinical negligence, breach of human rights and discrimination. He acts for individuals suffering injuries caused by exposure to a variety of toxic substances, for individuals whose land has been affected by pollution and in judicial review challenges of regulatory bodies for failing to protect the environment. In addition, Sean also specialises in medical confidentiality matters and requests for information under the Data Protection Act and Freedom of Information Act.


Trained Leigh Day 1993-96; qualified 1996; assistant solicitor 1996-2001; partner 2001. Previously worked in industry as a research scientist and then as a campaigner for Friends of the Earth (England and Wales).


Association of Prison Lawyers; Law Society’s planning and environmental law committee; secretary, environmental group, APIL; UK ELA; ELF.


St Paul’s School, Barnes; Oxford University (biochemistry degree); University of Westminster (Law Conversion Course).


Watching rugby.

Lawyer Rankings

London > Public sector > Civil liberties and human rights

(Leading individuals)

Sean HumberLeigh Day

Described as ‘synonymous with human rights‘, the practice at Leigh Day stands at the forefront of civil liberties and acts in landmark cases pertaining to international human rights, sexual violence issues, actions against the state, and immigration mandates. Jamie Beagent oversees the group, which is skilled in undertaking a range of domestic human rights work and representing NGO’s. Core members of the group include Daniel Leader. who is experienced in complex multi-party actions; privacy law expert Sean Humber, and Rosa Curling. On the international side, co-head Richard Meeran and Sapna Malik are the key contacts for cross-border human rights matters; the team has a specialism in acting in international abuse cases that cut across the fields of personal injury and human rights issues. Founder and senior partner Martyn Day is also a recommended contact.

London > Public sector > Administrative and public law

Leigh Day is frequently engaged by non-commercial public law claimants in cutting-edge judicial review challenges against government bodies. Prison law team head Benjamin Burrows is heavily invested in representing the rights of transgender prisoners, while Stephanie Hill and Waleed Sheikh handle challenges concerning immigration detention. Practice head Jamie Beagent has a notable practice in planning and environmental law; Tessa Gregory has brought numerous challenges to the Secretary of State for Work and Pensions’ implementation of universal credit; Rosa Curling has a diverse practice ranging from arms trade challenges to protestors’ rights; and Sean Humber gained a successful ruling regarding voting arrangements for blind and partially sighted people. Public inquiry and inquest work is handled by Emma Jones and Yvonne Kestler.