Jamie's research and teaching covers most areas of public international law. He has a particular interest in questions surrounding decolonization, territory, self-determination, and the law and practice of international courts and tribunals. In addition to his academic work, he is a practising lawyer. He qualified at the Bar of England and Wales in 2001 (as a member of Lincoln's Inn), and the Bar of Gibraltar in 2005 (appointed King's Counsel in 2023). He is a Senior Counsel at Albertson (14 Old Square, Lincoln's Inn), and a consultant at Isolas LLP, Gibraltar's oldest law firm.