In investment arbitration, it is widely recognized that to benefit from the protection of an investment treaty, the investment must be legal. Tribunals assess this legality either because the treaty explicitly mandates it (e.g., Ecuador-Sweden BIT) or because the tribunal assumes this authority even if the treaty is silent (e.g., Worley v. Ecuador). In either…

On October 6, 2023, an arbitral tribunal composed by Diego P. Fernández Arroyo (President), Christian Leathley, and Marcelo Kohen (the “Tribunal” or “Arbitral Tribunal”) issued the final award in the dispute between Michael Anthony Lee-Chin (“Claimant”), a Jamaican national, and the Dominican Republic (“Respondent”) (the “Award”). The dissenting opinion of Professor Marcelo G. Kohen accompanied…