This book investigates the ambiguous role of domestic law within the framework of international investment treaty arbitration and proposes a structured methodology for its application. Jarrod Hepburn, a legal scholar, synthesizes existing case law, international legal principles, and comparative analysis to address the lack of clarity regarding how tribunals should interpret and apply national laws. The text provides a systematic framework designed to assist practitioners and arbitrators in navigating the complex intersection between domestic legal systems and international investment obligations.

Legal scholars and practitioners identify this work as a significant contribution to the field of international investment law due to its focus on a previously under-theorized procedural issue. Experts highlight the text as a practical resource for those seeking to navigate the complexities of applying national law within international arbitral tribunals.