2021-UNAT-1089, Van Khanh Nguyen
UNAT held that the UN-ISA Special Agreement and the resulting ISA Staff Rules do not comply with the UNAT Statute and, consequently, UNAT is unable to exercise its jurisdiction as a second-level tribunal. The jurisdictional power of UNAT, ratione personae, and ratione materiae cannot be established or extended unilaterally by the litigating parties through a procedural contract, expressly or tacitly agreed.