"Canada, Quebec and Constitutional Amendment", presentation in Professor Richard Albert's "Constitutional Reform in Canada" Seminar, Faculty of Law, University of Ottawa, 29 September 2021.
" Fiscal Federalism and the Federal Spending Power : A Legal and Constitutional Analysis ", online presentation as part of a three-day conference on Fiscal Federalism in Canada, University of Ottawa, 21-23 April 2021.
"The Double Aspect Doctrine in Reference re Greenhouse Gas Pollution Pricing Act ", online presentation in Professor Wade Wright's "Current Issues in Public Law" Seminar, Faculty of Law, Western University, 8 January 2021 (with Nathalie J. Chalifour).
"Supervision and Enforcement of Public Law Administration -- Comments on Chapter 10 of Lionel Smith's Draft Book, Stepping Outside of Ourselves: How We Act for Others in Law", presented at two-day online workshop organized by the Faculty of Law, McGill University, 18 and 25 September 2020.
"'Dominion Status': History, Framework and Context", paper presented as part of an online seminar on New Dominion Constitutionalism and New Directions in Comparative Constitutional Research, Chinese University of Hong Kong, 7 July 2020.
" Sustainable Jurisprudence : Une théorie de droit durable ", paper prepared for the lunchtime seminar series, Civil Law Section, Faculty of Law, University of Ottawa, 31 March 2020 (postponed due to COVID-19).
“Partnerships Within Law: Dialogues Between Doctrinal and Socio-Legal Scholarship”, paper presented at the Canadian Law & Society Association Conference, Ottawa, 18 October 2019.
“RTE Latham and Change in the Ultimate Rules of a Legal System”, paper presented at a Conference in Honour of Richard Kay”, Faculty of Law, University of Connecticut, Hartford, Connecticut, 13 September 2019.
“‘A Constitution Similar in Principle to that of the United Kingdom’: Constitutional Principles and the Importance of Context – A Sustainable Jurisprudence”, paper presented at ICON-S Public Law Conference, Santiago, Chile, 2 July 2019.
Comments on Nicholas Barber’s Principles of Constitutionalism (OUP, 2018) paper presented at ICON-S Public Law Conference, Santiago, Chile, 1 July 2019.
“Canada and the Living Tree”, paper presented at ICON-S Public Law Conference, Santiago, Chile, 1 July 2019“Sustainable Jurisprudence and Constitutional Reasoning”, paper presented at the 2nd annual Ottawa-Queen’s public law works-in-progress seminar, Faculty of Law, Queen’s University, Kingston, Ontario, 13 May 2019.
“A Constitution Similar in Principle to that of the United Kingdom, Constitutional Principles and the Importance of Context”, paper presented at a workshop on unwritten constitutional norms and principles, Faculty of Law, University of Ottawa, 21-22 March 2019.
“The Flexibility of Constitutions”, paper presented as part of the “Remaking the UK Constitution” Conference, Bonavero Institute of Human Rights, University of Oxford, 22 February 2019.
“Parlons recherche – Talking About Research”, Opening address for a two-day Faculty of Law even on the creation and maintenance of a research culture, 23-24 October 2018.
“Sovereignty and Legality: Comments on Chapter 7 of Mark Walters’ draft book, A.V. Dicey and the Common Law Constitutional Tradition”, presented at two-day workshop, Faculty of Law, McGill University, 14-15 September 2018.
“Sustainable Jurisprudence: Constitutional Reasoning, Constitutional Crises and the Rule of Law”, presented to Workshop on Constitutional Reasoning, International Association of Constitutional Law Conference, Seoul, South Korea, 21 June 2018.
“Sustainable Jurisprudence”, Keynote address to Graduate Student Conference, Faculty of Law, University of Ottawa, 10 May 2018.
“Constitutional Boundaries: The Relevance of Past, Present and Future to the Concept of (Constitutional) Law”, presented to Joint Queen’s-uOttawa Works in Progress Workshop, Faculty of Law, University of Ottawa, 10 May 2018.
“The Boundary Between Past and Future: A Future-Oriented Approach to Law, Legal System and Adjudication”, paper presented at Constitutional Boundaries Workshop, Faculty of Law, University of Melbourne, 26 August 2017.
“Goodbye to Watertight Compartments”, paper presented at Constitutional and Administrative Law Section Conference, National Library and Archives Canada, Ottawa, Canada, 6 June 2017.
“Goodbye to Watertight Compartments”, paper presented at Constitution150 Confererence, Faculté de droit, Université de Montréal, 16 May 2017
Dominion Status: Framework and History”, paper presented at Modern Law Review Workshop Series on Dominion Status at the End of Empire, City University London, 6 June 2016.
“Hard Cases in Constitutional Law and the Importance of Context”, paper presented at Work in Progress Seminar, Faculty of Law, University of Ottawa, 15 April 2016.
“Parliamentary Sovereignty, Federalism and the Commonwealth”, paper presented at Conference on Federalism Within and Without the United Kingdom, Faculty of Law, University of Durham, 29 November 2015.
“Hard Cases in Constitutional Law and the Importance of Context”, Legal Theory Workshop, Faculty of Law, McGill University, 26 October 2015.
“Election Post Mortem”, paper presented at the Social Justice Group seminar, Faculty of Law, University of Ottawa, 20 October 2015.
“Post-Election Scenarios: Conventions, Confidence and Caretakers”, paper presented at roundtable organised by the Public Law Group, Faculty of Law, University of Ottawa, 13 October 2015.
“Paradoxes and Puzzles in Constitutional Change: Scotland, Europe, Canada”, St Catherine’s College Research Talks, St Catherine’s College, University of Oxford, 17 June 2015.
“The Living Tree in Theory and Practice”, paper presented as part of a seminar on “The Canadian Doctrine of the Living Tree” (other paper presented by Justice Robert Sharpe of the Ontario Court of Appeal), organized by Oxford Law and Public Affairs, Faculty of Law, University of Oxford, 19 May 2015.
“Canadian Perspectives”, paper presented at Conference on How Federal is Britain: Self-Rule and Shared Rule in the Evolving Constitution, organised by ESRC Centre on Constitutional Change, Edinburgh Centre for Constitutional Law and the Forum of the Federations, at the University of Edinburgh, 21 April 2015.
“Federalism and Intergovernmental Structures in Canada”, paper presented at High Commission of Canada seminar on Multilevel Governance in a Westminster-Style Parliamentary Democracy: The Canadian Experience, Canada House, Trafalgar Square, London, 24 March 2015.
“Change in the Ultimate Rules of a Legal System”, paper presented to Jurisprudence Discussion Group, Faculty of Law, University of Oxford, 22 January 2015.
“The ‘Constitution of Canada’ after Nadon/La ‘Constitution du Canada’ après Nadon”, paper presented at a Symposium on Appointing Judges in the 21st Century : Reflections on the Nadon Reference, organised by the Public Law Group, Faculty of Law, University of Ottawa, 28 May 2014.
“The federal spending power”, keynote speaker, 30th Constitutional and Administrative Law Conference, Justice Canada, Ottawa, 9 May 2013.
"Le rôle des conventions conventionnelles devant les tribunaux canadiens: les renvois et les litiges ordinaires", Paper presented at the Matinées constitutionnelles, Faculté de droit, Université de Montréal, 24 January 2013.
“The evolution of Canadian federalism since 1982”, Constitution @ 30 Conference, Ottawa, 17 April 2012.
« L’évolution du fédéralisme canadien depuis 1982 », Conférence Constitution @ 30, Ottawa, 17 avril 2012.
« Le pouvoir fédéral de dépenser », Staff discussion group, Faculty of Law, University of Ottawa, February 2012.
“Justiciability and Deference in Constitutional and Administrative Law”, Training Session, Constitutional Administrative and International Law Section Training, Justice Canada, 12 January 2012
« L’arrêt Insite et l’exclusivité des compétences provinciales », Conférence sur les enjeux émergents en droit public canadien, Ottawa, le 25 mai 2011.
“Canadian Federalism: Health and Education”, Paper presented to Canadian Bar Association seminar on The Constituent Assembly and Constitution-Making in Nepal: Lessons from Canada, October 2010.
“The Codification of Constitutional Conventions”, co-organizer and panelist -- Canada’s New Governor General: The Challenges Ahead, University of Ottawa, 28 September 2010.
“The Supreme Court of Canada : Constitutional Conventions, Constitutional Principles and ‘A Constitution Similar in Principle to that of the United Kingdom’”, Panel on the Politicization of the Judiciary/Judiciarization of Politics, Canadian Political Science Association, 1 June 2010.
“The Federal Spending Power”, paper presented to Federalism and Institutions Study and Research Laboratory, Faculty of Social Sciences, University of Ottawa, 7 April 2010.
“Unjust Enrichment in Public and Private Law”, paper presented at conference on Philosophical Foundations of Unjust Enrichment, London, England, 12 April 2008.
“Choice of Policy Instrument”, paper presented to Legal Operations Branch of Privy Council Office, Government of Canada, Ottawa, 1 June 2007.
“Recent Developments in Parliamentary Sovereignty in the United Kingdom”, paper presented at Faculty of Law, University of Ottawa, 18 January 2007.
“The Red Rose and the Maple Leaf: Canada-UK Comparisons”, paper presented to Directors of Public Law Section, Justice Canada, Cantley, Quebec, 17 January 2007.
“Constitutional Foundations: “The Constitution of Canada and Reception, Amendment and Sovereignty of the Constitution of Canada, Parliamentary Sovereignty”, paper presented at Privy Council Office, Government of Canada, Ottawa, Canada, 2 December 2006.
“Constitutional Fundamentals: Constitutional Conventions, Parliamentary Sovereignty and ‘A Constitution Similar in Principle to that of the United Kingdom’”, paper presented at Privy Council Office, Government of Canada, Ottawa, Canada, 25 October 2006.
“Fish, More Fish and Foxes: Recent Developments in Parliamentary Sovereignty in the United Kingdom”, keynote speaker, Constitutional and Administrative Law Section Conference, Canadian Government Conference Centre, Ottawa, Canada, 28 April 2006.
“Commonwealth Constitutional Development – Lessons for Constitutional Theory”, paper presented to Staff Seminar Series, Faculty of Law, McGill University, Montreal, Canada, 27 April 2006.
“Commonwealth Constitutional Development – Lessons for Constitutional Theory”, paper presented to Constitutional Law Roundtable/Legal Theory Workshop, Faculty of Law, University of Toronto, Toronto, Canada, 28 March 2006.
“Recent Developments in Parliamentary Sovereignty in the United Kingdom”, paper presented to Toronto Office, Department of Justice Canada, 27 March 2006.
“Commonwealth Constitutional Development – Lessons for Constitutional Theory”, paper presented as part of Visiting Lecture series, Faculty of Law, University of Saskatchewan, Saskatoon, Canada, 23 March 2006.
“Sovereignty and Canada’s Constitutional Independence”, paper presented to Toronto Office, Department of Justice Canada, 2 March 2006.
“Sovereignty and Canada’s Constitutional Independence”, paper presented to Public Law Section, Department of Justice Canada, 22 February 2006.
“Commonwealth Constitutional Development – Lessons for Constitutional Theory”, paper presented as part of Visiting Lecture series, Faculty of Law, Queen’s University, Kingston, Canada, 6 February 2006.
“Parliamentary Sovereignty in the United Kingdom – Recent Developments”, paper presented to Public Law Section, Department of Justice, Canada, 1 December 2005.
“Constitutional Continuity and the European Legal Order: Sovereignty and Legal Systems”, paper presented to King's College London-Max Planck Institute Seminar Series, Heidelberg, Germany, 7-8 July 2005.
“Building a United Kingdom Constitution”, paper presented to Staff Seminar Series, King’s College London, 16 March 2005.
Three-Lecture Series as part of the Associate of King’s College (AKC) degree, “Europe, Devolution and Sovereignty”, January-March 2005.
“Sovereignty and Legal Systems”, paper presented to Oxford University B.C.L. Constitutional Theory students, 18 May 2004.
“Quebec and Constitutional Amendment”, paper presented at “Constitutionalism & Cultural Pluralism: Lessons from Canada” Conference, Faculty of Law, Canadian Studies Programme, University of Edinburgh, 27 April 2004.
“Sovereignty and Legal Systems: The Commonwealth and Europe”, paper presented to Research Seminar, Centre of European Law – Max Planck Institute Heidelberg, King’s College London, 23 January 2004.
“Sovereignty and Legal Systems: the Commonwealth and the EU Compared”, paper presented to Deutcher Akademischer Austausch Dienst (DAAD) Law Conference, Cumberland Lodge, 18 June 2003.
“Loss of Chance in the Supreme Court of Canada”, paper presented to Senior Practitioners Seminar, British Institute of International and Comparative Law, 11 June 2003.
“Comments on the Misuse of Kelsen’s Theory”, paper presented to Conference on the Legal Deterrent to Coups, British Institute of International and Comparative Law, 16 January 2001.
“Power”, paper presented to Conference on Absolute Authority, King’s College Law Student Society, Cumberland Lodge, 18 November 2000.
Three-Lecture Series as part of the Associate of King’s College (AKC) degree, “Constitutional Dimensions of Justice”, October-November 2000.
“Sovereignty and Legal Systems: The Commonwealth and the European Union”, paper presented in the Law Faculty seminar series, University of Reading, 3 May 2000.
“The Quebec Secession Reference: Domestic and International Law”, paper presented to Conference on Accommodating National Identity, Institute of Advanced Legal Studies, London, 12 November 1998.
“Sustaining Charity”, paper presented to Colloquium on Foundations of Charity, co-sponsored by the National Council of Voluntary Organisations (NCVO), Modern Law Review (MLR) and the Economic and Social Research Council (ESRC), King’s College London, 14-5 September 1998.
“The Foundations of Charity”, series of round table discussion involving participants in Foundations of Charity Conference, January- July 1998.
“The Influence of Imperial Constitutional Theory in the Development of Australian, Canadian and New Zealand Legal Culture”, paper presented to Australia and New Zealand Legal History Conference, “Empires, Colonies, Legal Cultures”, University of Melbourne, Australia, 3-5 July 1998.
“Diversity in the Constitutional Traditions of Australia, Canada and New Zealand”, paper presented to Association for Canadian Studies in Australia and New Zealand, “Diversity in Australia, Canada and New Zealand”, Macquarie University, Sydney, Australia, 9-11 July 1998.
“Remembering R.T.E. Latham”, paper presented to King’s College London Law Student Society Conference, Cumberland Lodge, London, 22 November 1997.
“Constitutional Amendment in Canada”, paper presented to British Institute of International and Comparative Law Conference, Cumberland Lodge, London, 8 April 1997.
“Constitutional Change in the United Kingdom”, paper presented to British Institute of International and Comparative Law Conference, Cumberland Lodge, London, 11 April 1997.
“Dicey and the Dominions: The Influence of British Legal Thinking on the Development of the Canadian Constitution”, paper presented to British Association of Canadian Studies Annual Conference, University of Swansea, Wales, 25 March, 1997.
“The Patriation of the Canadian Constitution: Continuity and Change”, paper presented at Institute of Advanced Legal Studies, London, 17 February 1997.
Le ‘trust' anglais -- hier et aujourd’hui”, inaugural lecture as visiting professor in English Law, University of Toulouse I, Toulouse, France, February 1996.
“Law and Postmodernism”, paper presented to King's College London Staff Discussion Group, 5 December 1996.
“The Nature of (the) Trust”, paper presented as part of the King’s College London Legal Theory Seminars, The Theory and Politics of Private Law, 16 October 1996.