ABSTRACT
This chapter aims to discuss questions arising when domestic and international law meet. Even though the relationship between international and domestic law is an old question which has been discussed and theorised extensively, it remains live and relevant until today. In times of global governance, with increased interactions between legal orders, the question has even arisen whether new conceptualisations of the relationship have become necessary. The chapter first presents the classic theories conceptualising the relationship between domestic and international law and their limitations. It then gives an overview of practical questions domestic courts face when applying international law and, conversely, explores the application of domestic law by international courts. By doing so, it touches upon several contemporary debates.
