The Paquete Habana, 175 U.S. 677 (1900)
The Paquete Habana is a landmark decision by the United States Supreme Court that explicitly recognized customary international law as an integral part of United States law. The case arose out of the capture of two Spanish fishing vessels by the United States Navy during the Spanish-American War.
Does customary international law exempt coastal fishing vessels from capture during wartime, and is such law applicable in U.S. courts absent any contrary domestic statute?
Customary international law is integrated into domestic U.S. law and must be applied by U.S. courts, unless there is a clear legislative or executive directive to the contrary.
The Supreme Court held that, in the absence of a definitive legislative or executive act to the contrary, customary international law must be followed, and vessels engaged in coastal fishing are exempt from capture as prizes of war.
The significance of The Paquete Habana lies in its formal acknowledgment of the role of customary international law within the United States legal system. For law students and practitioners, this case stands as a foundation for understanding how international norms can influence domestic legal interpretations and decisions. It sets a precedent for how customary law operates alongside statutes and case law, guiding U.S. courts in applying international principles in the absence of pertinent domestic conflicts. For international law studies, it provides a concrete example of the incorporation doctrine, showcasing its practical application in the realm of prize law and beyond.