The Volokh Conspiracy
Mostly law professors | Sometimes contrarian | Often libertarian | Always independent
Release of ship by Iran is really a ransom
News reports suggest that Iran may release the Maersk Tigris, which it has held for a week, in a few days - upon receiving payment from Maersk, the vessel's charterer. It appears Iran is essentially seizing vessels for ransom, or charging a selective toll on transit through international straits. (The crew has reportedly just been released, but the ship is still detained.)
Iran purports to have seized the vessel to satisfy a debt. As I've explained, this argument fails on its own. Moreover, fundamental rules of international law prohibit the arrest of vessels in transit for the debts incurred on prior transits or by other vessels. This is codified in Art. 20(2) of the Convention on the Territorial Sea and the Contiguous Zone, to which Tehran is a party.
The Islamic Republic has no legal authority to seize the ship. Releasing it on payment of money is not piracy, because that can only committed by non-state actors, but it is definitely a shake-down, and an assertion of general sovereign rights over international shipping lanes. It is likely not the last such ransom Iran will demand.
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