Extraterritoriality—the power of one nation to impose its laws in other countries
Case: Kiobel v. Royal Dutch Petroleum Co.3
Facts: Throughout the early 1990s, Royal Dutch Petroleum, a Dutch company, and Shell, a British
company, were engaged in oil exploration and production in Nigeria. When local residents protested
the oil companies’ practices, the firms allegedly paid the Nigerian Government to suppress the protests
by beating, raping, killing, and arresting locals.
A group of Nigerian victims of these attacks sued the oil companies in U.S. federal court for violations
of customary international law under the Alien Tort Statute (ATS), a statute passed by the first
Congress in 1789. The ATS allows U.S. district courts to hear certain lawsuits brought by non-U.S.
citizens for violations of international law occurring in the United States or on the high seas, outside
the sovereignty of any country. According to the plaintiffs, the oil companies violated customary
international law and jus cogens by helping the Nigerian Government commit many crimes against
humanity.
The appeals court dismissed the case. The Supreme Court granted certiorari on the question of whether
the ATS permitted U.S. courts to hear a suit for violations of customary international law that occurred
outside the U.S.
Issue: Does U.S. law extend to violations of customary international law occurring entirely outside the
United States?
Excerpt from Chief Justice Roberts’s Decision:4
The question here is whether a claim under the ATS may reach conduct occurring in the territory of a
foreign sovereign. The oil companies contend the [it does] not. They rely primarily on the presumption
of extraterritoriality [whose premise is] that United States law governs domestically but does not rule
the world. This presumption serves to protect against unintended clashes between our laws and those
of other nations that could result in international discord.
We typically apply the presumption of extraterritoriality to discern whether an Act of Congress
regulating conduct applies abroad. The ATS allows federal courts to recognize certain causes of action
based on sufficiently definite norms of international law. But we think the principles of interpretation
constrain courts considering causes of action that may be brought under the ATS.
Since many attempts by federal courts to craft remedies for the violation of new norms of international
law would raise risks of adverse foreign policy consequences, they should be undertaken, if at all, with
great caution. These concerns are all the more pressing when the question is whether a cause of action
reaches conduct within the territory of another sovereign.
There is no indication that the ATS was passed to make the United States a uniquely hospitable forum
for the enforcement of international norms. As Justice Story put it, “No nation has ever yet pretended
to be the custos morum5 of the whole world . . . .” It is implausible to suppose that the First Congress
wanted their fledgling Republic—struggling to receive international recognition—to be the first.
Indeed, the parties offer no evidence that any nation, meek or mighty, presumed to do such a thing.
Moreover, accepting Kiobel’s view would imply that other nations could hale our citizens into their
courts for alleged violations of the law of nations occurring in the United States, or anywhere else in
the world. The presumption against extraterritoriality guards against our courts triggering such serious
foreign policy consequences.
We therefore conclude that the presumption against extraterritoriality applies to claims under the ATS.
Kiobel’s case seeking relief for violations of the law of nations occurring outside the United States is
barred. If Congress were to determine otherwise, a statute more specific than the ATS would be
required.
3 133 S. Ct. 1659 United States Supreme Court, 2013
4For ease of reading, “respondents” has been replaced with “oil companies” and “petitioners” with “Kiobel.”
5In Latin, custos morum means “guardian of manners or morals.”