
Marguerite de Chaisemartin
Marguerite
de Chaisemartin
Marguerite de Chaisemartin is an international legal expert and consultant with over 15 years of experience in the sector. Her primary focuses have been on public international law, international environmental law, and the law, governance, and management of transboundary freshwater resources. She has worked throughout various regions of the world with numerous governments, IGOs, NGOs, local stakeholders, development banks, and academia. Notably, her experience has included several years in UNESCO’s International Hydrological Programme (UNESCO-IHP), working in the water cooperation and conflict prevention programme, as well as the transboundary aquifers programme.
Among other roles, Marguerite has served as a legal advisor to the Republic of Chile before the International Court of Justice in the case concerning the Dispute over the Status and Use of the Waters of the Silala (Chile v. Bolivia). She has worked as a senior project officer and project officer on transboundary water cooperation projects in the Euphrates and Tigris region and on the Nubian Sandstone Aquifer System. She also has developed and conducted trainings for diverse audiences, and worked as an Adjunct Professor at the McGeorge School of Law, University of the Pacific, where she co-developed the online course on international water law.
Marguerite received her legal education in both common law and civil law jurisdictions. She is fluent in English, French and Spanish, and has a working proficiency in German.

Dr. Riley 'Cody' Denoon
Riley ‘Cody’ Denoon is a Barrister and Solicitor from British Columbia and Alberta, Canada, he currently practices as a lawyer and consultant. He holds a Doctorate (J.S.D.) in public international law specializing in international water resources, obtained under the supervision of Prof. Stephen McCaffrey, the former special rapporteur to the International Law Commission on the subject of the non-navigational uses of international watercourses.
With more than a decade of experience, Riley has worked with the UN, including with UNESCO’s International Hydrological Programme (IHP) and Disaster Risk Reduction (DRR) Unit, as well as with national and provincial governments, NGOs, local stakeholders, and private clients. With extensive litigation experience, he has worked before various courts and tribunals, including as a legal advisor to Chile in the case concerning the Dispute over the Status and Use of the Waters of the Silala (Chile v. Bolivia) before the International Court of Justice.
Riley has worked as an adjunct professor at the University of the Pacific, McGeorge School of Law. He has taught courses and conducted trainings, including in the areas of international law, water resources law, international dispute resolution, and stakeholder engagement. Notably, he was a co-editor of the Research Handbook on International Water Law (Edward Elgar Pub, 2019).