Our Trustees

Mary Margaret McCabe (‘MM’) works on ancient philosophy, on ethics and on the philosophy of medicine; she has published mostly on Plato, but also on the Presocratics, on Aristotle and on the Stoics, as well as on topics in contemporary ethics and medicine. 

Her interest in prison education is of long standing; her mother was a criminologist, her husband is a judge; and her early research was on the philosophy of punishment.

Bill Brewer works on philosophy of mind, metaphysics, and epistemology: in particular on the metaphysics and epistemology of perception and its objects. 


He is a passionate believer in generous-spirited rehabilitation in prisons and has been involved in musical performances, book groups, recovery from addiction, mentoring and letter-writing, and now philosophy in prisons over a number of years.

Tom Harrison is a recently retired solicitor who now sits as a deputy district judge in the County Court (Civil) in East Anglia.


He practiced criminal law for the whole of his career appearing as an advocate and acting as a duty solicitor. In the course of his professional career he has represented numerous prisoners.

Our Patrons

Baroness O’Neill of Bengarve CH CBE FBA Hon FRS FMedSci MRIA was educated at Oxford and Harvard, where she worked under John Rawls. She has been a member of the House of Lords since 1999, sitting on the cross benches.


She lectures and writes on justice and ethics, and on the work of Immanuel Kant. Recent publications also address questions about accountability and trust, justice and borders, the future of universities, the quality of legislation and the ethics of communication.

Patrick McGrath was born in London. He is the author of three collections of short fiction, including and ten novels, including Asylum, Trauma and most recently, The Wardrobe Mistress. His screenplay of his novel Spider was filmed by David Cronenberg and premiered at the Cannes Film Festival. He is a Fellow of the Royal Society of Literature in Britain, and an honorary doctor of the University of Stirling.

Antony Duff works on philosophy of criminal law, including issues about punishment and imprisonment. He was a founding co-director of the Robina Institute for Criminal Law and Criminal Justice, and has led research projects on the criminal trial and on criminalization; he also chaired a British Academy working group which produced A Presumption against Imprisonment in 2014, and now works in penal reform issues as a committee member of Howard League Scotland.

Our Specialist Advisors

Mike Coxhead works on ancient Greek philosophy and epistemology. He is a Special Adviser to the trustees of Philosophy in Prison and manages courses on behalf of the charity. He is also a Visiting Research Fellow at the Department of Philosophy, King’s College London, where he runs the Department’s Philosophy in Prison programme. He has worked in a number of prisons, including HMP Belmarsh, Downview, Wandsworth, and Brixton.

Olivia D'Cruz runs her own design practice and assists the trustees of Philosophy in Prison with administrative tasks. She also is the charity's designer, providing and managing their brand assets and social media profiles.

Registered Charity Number: 1177805

Address: Stone King,

30 Station Road,
Cambridge, CB1 2RE

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