Rossana Deplano

Telephone: +44 (0)116 252 2336

Personal details

Laurea in Scienze giuridiche (LLB), Laurea in Giurisprudenza (LLM), PhD

I joined the University of Leicester in September 2015. My research interests lie in the field of public international law and international legal theory.

I recently completed a monograph on the strategic use of international law by the United Nations Security Council. By employing a quantitative research methodology, the book provides the first comprehensive empirical study of the practice of the Security Council from the origins up to the present. Professor André Nollkaemper, President of the European Society of International Law, described the book as ‘an all too rare attempt to bring empirical legal studies to international law'.

I am currently working on a monograph for Cambridge University Press entitled: Empirical and Theoretical Perspectives to International Law: How States Use the UN General Assembly to Create International Obligations (forthcoming 2020).

I was a Visiting Scholar at the Lauterpacht Centre for International Law, University of Cambridge (2017) and Scholar-in-Residence at the Library of Congress, Washington DC, U.S.A. (2018).


  • R. Deplano, ‘The UN Security Council: from preserving state sovereignty to protecting humanity’ in S. Sayapin (ed.), International Conflict and Security Law – Volume I, Protected Values, Law and Institutions, T.M.C Asser Press/Springer (forthcoming 2019), Chapter 17.
  • R. Deplano, ‘Building Pragmatic Utopias: The “Other” Security Council, International Law and the United Nations Dream’ 60 German Yearbook of International Law (forthcoming). Access pre-published version via SSRN.
  • R. Deplano, ‘The riddle of custom: General Assembly resolutions’ in S. Droubi and J. d’Aspremont (eds.), International Organizations, Non-State Actors, and the Formation of Customary International Law, Melland Schill Perspectives on International Law (Manchester University Press, 2019), Chapter 11. Access pre-published version via SSRN
  • R. Deplano, ‘Assessing the Role of Resolutions in the ILC Draft Conclusions on Identification of Customary International Law: Substantive and Methodological Issues’ 14(2) (2017) International Organizations Law Review, 227–253. Access pre-published via SSRN.
  • R. Deplano, The Strategic Use of International Law by the United Nations Security Council – An Empirical Study, Springer, 2015
  • R. Deplano, ‘The Welfarist Approach to International Law: An Appraisal’ in Prabhakar Singh and Benoit Mayer (eds), Critical International Law: Postrealism, Postcolonialism and Transnationalism, Oxford University Press, 2014, pp. 74-97
  • R. Deplano, ‘Fragmentation and Constitutionalisation of International Law: A Theoretical Inquiry’ 6(1) European Journal of Legal Studies (2013) 67-89.
  • R. Deplano, ‘Questioning Unstated Assumptions of International Constitutionalism’ 4(1) Journal of the Philosophy of International Law (2013) 99-103

More publications are available on my SSRN author page.


  • Public international law
  • United Nations law
  • Law of international organisations
  • International legal theory

Current Teaching


  • Constitutional and Administrative Law


  • General Principles of International Law
  • Law of the United Nations
  • Dissertation tutor

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