Context: US seizes North Korean coal ship for violating sanctions The relevant (US) legal document is here.
The ship was detained in Indonesia for violating local maritime laws, and the captain was convicted there. The US thinks the ship violates US sanctions, and issues a warrant. So far this is understandable. But then the US gets the custody of the ship. How was it justified? Is there a legal priority given to the United States in such a capture (vs the country where the ship is detained)?