Extraterritoriality in East Asia examines the approaches of China, Japan, and South Korea to exercising legal authority over crimes committed outside their borders. It considers examples of legislation and judicial decision-making and offers a deeper understanding of the topic from the perspective of this legally, politically, and economically significant region.Beginning with a foundational overview of the principles of jurisdiction in international law, as well as identifying current challenges to those principles, subsequent chapters analyse the ways in which extraterritorial jurisdiction operates and is regulated in China, Japan, and South Korea.Danielle Ireland-Piper contextualizes contemporary issues within a historical narrative of each country and concludes by exploring areas of convergence and divergence between them. This book will be of particular interest to scholars and students of comparative, criminal, constitutional, and international law, as well as international relations, especially in the context of East Asia. Law-makers and practitioners, such as criminal lawyers and prosecutors, will also find its contemporary analysis useful.