Professor Peter J. Leyland

Senior Research Fellow

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Professor Peter Leyland is Senior Teaching Fellow and Visiting Professor of Public Law at the School of Oriental and African Studies and emeritus Professor of Public Law, London Metropolitan University. He has published widely in the field of UK public law, comparative constitutional law, on Thailand’s constitutional and legal system and UK constitutional and administrative law. The subject matter of his research has included the following themes, pursued in both a UK and comparative aspect, the latter relating especially to Italy and Thailand:

  1. approaches to comparative public law;
  2. devolution, particularly in comparative perspective;
  3. freedom of information;
  4. utility regulation;
  5. executive accountability.

He has authored the volumes on the Constitution of the United Kingdom (3rd ed 2016) and the Constitutional System of Thailand (with A Harding, 2011) in the Hart series ‘Constitutional Systems of the World’, of which Peter is a founding editor and acting co-editor. Other publications include five edited collections in the field of public law and comparative public law.Accountability in the Contemporary Constitution and Sovereignty of the Law were published by Oxford University Press in November 2013. Also, (with Professor Gordon Anthony), he is the author of a study of UK Administrative Law, the eight edition of which was published in July 2016 by Oxford University Press.

Keynote speaker at the annual conference of Italian constitutional lawyers in 2014 and have frequent involvement in public law conferences and workshops. In addition, visiting professor at two colleges of the University of London (University College London and Queen Mary College); the Notre Dame University; the universities of Bologna, Padua, Ferrara, Trento, Palermo, Catania, Messina, Bari, Brescia, LUMSA, Rome, LUISS, Rome, Genoa and Bocconi, Milan, in Italy; Bordeaux in France, Munich in Germany; Vienna and Innsbruck in Austria; and at the National Institute for Development Administration, the Council of State and the Administrative Courts in Thailand; the University of Melbourne; and the University of Victoria in Canada. Peter serves on the board of more than ten scholarly journals, provide consultancy advice on legal and constitutional matters and has been an Honorary Fellow of the Honourable Society of the Middle Temple since 2009.

Editorial Role and Academic Board of Scholarly Journals

Series founder and co-editor: Constitutional Systems of the World, Hart Publishing.

Editorial Board: Nuova collana di Diritto Publlico

Editoral  Board: Diritto pubblico contemporaneo – gli ordinamenti costituzionali

Editorial Board: Rassegna Parlementare

Editorial Board: European-Asian Journal of Law and Governance (EAJLG), Bangkok

Editorial Board: Federalismo, Bologna, Italy

Editorial Board: Journal of Comparative Law, Wildys, London

Editorial Board Associate: Revista General del Derecho Públicho Comparado, Madrid

Scientific committee: Devolution Club, Italy

Centro Bachelet del Luiss Guido Caro, Rome: Advisory Board.

EURAC Research, European Academy, Bolzano: Ring of Friends

Selected Publications


Accountability in the Contemporary Constitution (Oxford: Oxford University Press, 2013) co-editor with Nicholas Bamforth, 432 pages, 978-0-19-967002-4.

Sovereignty and the Law: Domestic, European and International Perspectives (Oxford: Oxford University Press, 2013) co-editor with Richard Rawlings and Alison Young, 368 pages, 978-0-19-968406-9.

Textbook on Administrative Law (7th edition, Oxford, OUP, 2012) with Gordon Anthony ISBN 978-0-19-960166-0, 506 pages.

The Constitution of the United Kingdom: A Contextual Analysis, 2nd edn (Oxford: Hart Publishing, 2012)

The Constitutional System of Thailand: A Contextual Analysis, (Oxford, Hart Publishing, 2011), in series Constitutional Systems of the World, 280 pages, with Andrew Harding. ISBN 978-1-84113-972-2.

Constitutional Courts: A Comparative Study, (London, Wildy, Simmonds and Hill, 2009), co-editor with A. Harding, ISBN 9780854900633, 385 pages.

English Administrative Law: Justice and Remedies in the Contemporary State, (Bologna, Bononia Press, 2009), ISBN 978-88-7395-443-9, 128 pages.

Textbook on Administrative Law (6th edition, Oxford, OUP, 2008) with Gordon Anthony ISBN 0-19-927937-3, 535 pages.

The Constitution of the United Kingdom: A Contextual Analysis (Oxford, Hart Publishing, 2007) (first in seriesConstitutional Systems of the World) ISBN 1-841136662, 240 pages.

The United Kingdom: An Introduction to the Law of the Constitution. Book in series Diritto pubblico Contemporaneo (Giappichelli, Torino, 2005), ISBN 88-348-5607-4. 235 pages.

Freedom of Information in the United Kingdom and Italy: Principles and Practice, (Libreria Bonomo, Bologna, 2003). 200 pages (co-author), ISBN 88-88095-50-0.

Public Law in a Multi-Layered Constitution,  Oxford, Hart Publishing co-editor with Nicholas Bamforth, (Oxford, Hart Publishing, 2003). 433 pages, ISBN 1-84113-283-7.

“New Labour”, Governance and Regulation: A Third Way? (CLUEB, SPISA, University of Bologna, 1999). Published in English, ISBN 88-491-1320-X.

Administrative Law Facing the Future: Old Constraints New Horizons, (London, Blackstone Press, 1997), co-author with Terry Woods. 465 pages, ISBN 1 85431 689 3.

Crime, Punishment, Procedure: The English Approach, (Osnovy, Kiev, 1996). 206 pages, ISBN 966-500-125-6.

Chinese translation

Textbook on Administrative Law, 5th edn translated into Chinese and published Peking University Press, 2006.

Chapters in Books

Multi-layered Constitutional Accountability and the Refinancing of Territorial Governance in the UK’ in N Bamforth and P Leyland (eds) Accountability in the Contemporary Constitution (Oxford: Oxford University Press, 2013), 309-329.

Accountability in the Contemporary Constitution’ with Nicholas Bamforth in N Bamforth and P Leyland (eds)Accountability in the Contemporary Constitution (Oxford: Oxford University Press, 2013), 1-24.

‘Referendums, Popular Sovereignty and the Territorial Constitution’ in R Rawlings, P Leyland, A Young (eds) Sovereignty and the Law: Domestic European and International Perspectives (Oxford: Oxford University Press, 2013), 145-164.

Thailand’s Administrative Courts: A Case of Legal Transplants?’ in F Rugge (ed) Il transferimento internazionale dei modelli istituzionali (International Transfer of  Institutional Models), (Bologna: Il Mulino, 2013) 93-125, 978-88-15-23484-1.

‘The Case for the Constitutional Regulation of Referendums in the United Kingdom’ in A Torre and J Frosini (eds)Democrazia and rappresentativa e referendum nel Regno Unito (San Martino, Maggioli, 2012), ISBN 978-88-387-7769-3.

‘The Colour of Thailand’s (un) Constitutional Reforms: Red, Yellow or Orange?’ in D Linnan (ed) Legitimacy, Legal Development and Change: Law and Modernization Reconsidered (Farnham: Ashgate, 2012) 85-105 with Professor Andrew Harding.

‘La Sombra de Dicey y La Genealogía del derecho administrativo Inglés’ in  J. Prado Maillard (ed) El Control Político en el Derecho Comparado (Editorial Comares: Granada, 2010),  pp.51-83.

‘Combating Scandal, Codes of Practice and the Implementation of Ethical Standards in Public Life in the United Kingdom’ in F. Merloni and R. Perin Al Servizio della Nazione, (Collana Di Diritto e Societa, Milano, FrancoAngeli, 2009), ISBN 978-88-568-1593-1, pp.313-339.

‘The Genealogy of the Administrative Courts and the Consolidation of Administrative Justice in Thailand’ in A. Harding and P. Nicholson, New Courts in Asia, Routledge 2009, pp.231-251, ISBN 978-0-415-47005-6.

‘Financing UK Devolution: The Barnett Formula and the Virtue of Passive Financial Provision?’ in G. Carboni (ed) La Funzione Finanziaraia del Parlamento: Un Confronto tra Italia e Gran Bretagna, Giapichelli, Torino, 2009, pp.43-63. ISBN/EAN 978-88-348-9582-5.

‘The Emergence of Administrative Justice in Thailand under the 1997 Constitution’ in T. Ginsburg and A. Chen (eds.)Administrative Law and Governance in Asia, Oxford, Routledge Press, 2009, pp.230-257, 978-0-415-77731-5.

‘Constitutional Design and the Quest for Good Governance in Thailand’ in T. Groppi, V. Piergigli, A. Rinella Asian Constitutionalism in Transition: A Comparative Perspective, Milan, Giuffre, 2008 ISBN 88-14-14430-3, pp 69-105.

‘Executive Accountability, Civil Service Impartiality and the Case for a Civil Service Act in the United Kingdom’ in P. Pavoloupos, S. Flogaitis, A. Pantelis (eds) The Constitution and its Reform, European Public Law Series Volume XCII, Esperia Publications, London, 2008, ISBN 1-904673-68-6,  pp.181-210.

‘The Westminster Parliament and Executive Accountability: the oversight function of departmental select committees with reference to the Millennium Dome and the David Kelly Affair’, in Rossi E. (ed), Studi pisani sul Parlamento II, Pisa, Edizioni Plus, 2008, p. 409.

Journal Articles

‘The House of Lords: From Lord Chancellor to Lord Speaker’, Il Filangieri –Quaderno 2012, 75-87.

‘The Localism Act 2011: Local Government Encounters the “Big Society”’ Institutizioni del Federalismo, 2012 Anno XXXIII, ottobre/dicembre, 767-789.

‘’The multifaceted constitutional dynamics of UK Devolution’ International Journal of Constitutional Law, (2011) Vol 9, No 1, 251-273.

‘Constitutional Design in Thailand: the Management of Electoral Process in an Emergent Democracy’ with Andrew Harding The Journal of Parliamentary and Political Law, (2010), Vol 4, No 2, 299-321.

‘Devolution in the United Kingdom: a case of perpetual metamorphois?’ Istitutzioni del Federalismo, 2010, 1/2, 175-201.

The Jewish Free School Case and the Admissions Policy of Faith Schools in the United Kingdom’  Percoursi costituzionali, 1.2010, 245-253.

‘The Struggle for Freedom of Expression in Thailand: Media Moguls, The King, Citizen Politics and the Law’ (2010) 2(1)Journal of Media Law, 115-137.

‘Local Transport Provision in the United Kingdom: The Quest for Accountability and Coherence in a “Contract State”’ Anno XX1X, Gennaio-Aprile 2010, No. 1, Quaderni regionali, 133-155.

‘Thailand’s troubled South: examining the case for devolution from a comparative perspective’ Australian Journal of Asian Law, (2009) Volume 11(1) 1-29, ISSN 1443-0738.

‘Freedom of Information and the 2009 parliamentary expenses scandal’ [2009] Public Law 675-681.

‘Constitutional Courts: Forms, Functions and Practice in Comparative Perspective’ with Andrew Harding and Tania GroppiJournal of Comparative Law, Volume Three, Issue Two, 2008 pp. 1-21, published July 2009.

‘The Constitutional Courts of Thailand and Indonesia: Two Case Studies from South East Asia’ with Andrew HardingJournal of Comparative Law, Volume Three, Issue Two, 2008 pp.118-138 published July 2009.

‘”Fiscal Federalism” and Reforming the Financial Parameters of Devolution: Italy and the UK compared’ Percorsi costituzionali, Rubbetino, Anno II , 2009, p.239-249.

‘Rail Privatisation, Regulation and Re-regulation: Reviewing the Lines of Parliamentary Accountability’ 16 [2006/2007]Utilities Law Review, published December 2008, 241-250.

‘Thailand’s Constitutional Watchdogs: Dobermans, Bloodhounds or Lapdogs’ Journal of Comparative Law, Issue 2, 2007, 151-177. ISSN 1477-0814.

‘The Ombudsman Principle in Thailand’ Journal of Comparative Law, Issue 1, 2007, 137-151. ISSN 1477-0814.

‘Droit Administratif’ Thai Style: A Comparative Analysis of the Administrative Courts in Thailand’ Australian Journal of Asian Law, Vol. 8, No.2, 2006, 121-154

‘The Multi-Layered Constitution and the Quest for Devolved Government in the English Regions’ [2006] Le Regioni, numero1, gennaio-febbraio 2006, 9-44

‘Post Devolution: Crystallising the Future for Regional Government in England’, Northern Ireland Law Quarterly, Vol.56, No.4, Winter 2005, 435-461 (ISSN 0029-3105).

‘Executive Accountability and Planning Law in a Multi-Layered Constitution’ Sravinetilel’noe Constitutionnoe Obrizrenie, No 4 (53), 2005, 22-38 (ISSN 1812-7126).

‘The Railtrack Case: Mainly on the Wrong Track?’ Utilities Law Review, Vol 14, Issue 5, 2004/2005, 213-220 (ISSN 09602356).

‘Establishing a ‘Right to Know’ in the UK and The Freedom of Information Act 2000: New Openness or Missed Opportunity?’ Sravinetilel’noe Constitutionnoe Obrizrenie, No 1 (50) 2005, 10-23 (ISSN 1812-7126).

‘Back to Government? Re-Regulating British Railways’ Indiana Journal of Global Legal Studies, Vol.12 XXX , Summer Issue, 2005, 435-471 (ISNN 1080-0727).

‘Social Housing and Multi-Layered Governance: Accountability, Redress and the Grievance Chain’ Le istituzioni del federalismo, Iuglio/agosto, 2004, 4, Anno XXV 679-718.

‘Separating Powers and Constitutionalising the Office of Lord Chancellor’, Diritto Pubblico, Anno X (2004), n.1, Gennaio – Aprile 2004, 117-152.

‘Public Law in a Multi-Layered Constitution’, Judicial Review, Vol.5, Issue 3, September 2003, 157-163. Co-author with Nicholas Bamforth.

‘The Human Rights Act and Local Government: Keeping the Courts at Bay’ Northern Ireland Law Quarterly, Vol. 54, No.2, Summer 2003 136-159.

‘Regional Government Reform in Italy: Assessing the Prospects for Devolution’ (Public Law, Summer 2002 pp.242-252), co-author with Justin Frosini and Chiara Bologna.

‘Devolution, the British Constitution and the Distribution of Power’ Northern Ireland Law Quarterly, Vol. 53, No.4, December 2002, 408-435 (special devolution issue).

Encyclopedia Entries

Glossario di Diritto publico comparato ed. L. Pegoraro entry on ‘The Rule of Law’, Roma, Carocci Editore, 2009. ISBN 978-88-430-5070-3.

Oxford International Encyclopaedia of  Legal History: entry on ‘Thailand’, published April 2009. ISBN 9780195134056.

Projects 2012 and beyond

Accountability in the Contemporary Constitution (co-editor with Nicholas Bamforth) due for publication 2012-2013 to be published by OUP.

Sovereignty and the Law: National European and Global Perspectives (co-editor with Rick Rawlings and Alison Young) to be published by OUP.

Publication of further volumes in Hart series: Spain, Mexico, France currently in preparation.

Media Commentator

2013  Russian TV, Channel 5, June 2013, Opinion on the Constitutionality of the Royal Succession.

2010 BBC News, BBC World News, BBC Radio interviewed as specialist on Thai constitutional situation.

2008 Radio Australia interviewed as specialist on Thai law and constitution.

2008 BBC World Service interviewed as specialist on Thai law and constitution.

2008 BBC World News interviewed as specialist on Thai law and constitution.

Consultancy and Advice

October 2009 Consultancy advice: Dr Surakiart Sathirathai, ex Thai Deputy PM and Foreign Minister (law reform in Thailand)

September 2008 Consultancy advice Studio Legale Zilio, Venice.

January to June 2005 SOAS for Chinese Government: Advice to Chinese administrative lawyers regarding administrative justice and dispute resolution

January 2005 Office of the Council of State, Bangkok: Advisor and lectures on law and administration for civil servants and government lawyers.

July 2004 Philippines Embassy and Asian Center for the Study of Democracy: Advice in respect to constitutional issues.


French, Italian, German, Russian and Thai