Dispute Settlement
Municipal courts (also known as the “domestic” courts of various nation-states) are often called
upon to settle international disputes—typically, those disputes between individuals and
corporations from different nation-states, and sometimes even disputes involving sovereign states.
The competence or ability of a municipal court to exercise the power to try a case is known as
jurisdiction. Under international law, the jurisdiction of municipal courts to try an international
dispute is limited.
The ability of a defendant to escape the jurisdiction of a court is known as immunity. Natural and
juridical persons have few (if any) immunities from the powers of a municipal court. Foreign
states traditionally have had complete immunity, but this situation has changed substantially. State
agencies that carry out commercial activities are commonly treated as having no immunity.
Jurisdiction in Criminal Cases – Criminal prosecutions are conducted in accordance with
international law principles where there is some connection, or “nexus,” between the regulating
nation (the forum) and the crime or criminal.
Four nexuses have been invoked by courts to justify their exercise of jurisdiction. (1) The
territoriality nexus holds that the place where an offense is committed—in whole or in part—
determines jurisdiction. (2) The nationality nexus looks to the nationality or national character of
the person committing the offense to establish jurisdiction. (3) The protective nexus provides for
jurisdiction when a national or international interest of the forum is injured by the offender. (4)
The universality nexus holds that a court has jurisdiction over certain offenses that are recognized
by the community of nations as being of universal concern, including piracy, the slave trade,
attacks on or the hijacking of aircraft, genocide, war crimes, and crimes against humanity.
Exercise of jurisdiction must be reasonable, in light of the factors that: (1) The criminal activity
must have a substantial effect on the forum. (2) The accused or the victim must have a genuine
link with the forum. (3) The forum must have an interest in the regulated activity. (4) Justified
expectation must be protected by the forum’s regulation. (5) Other countries’ interests must not be
harmed. (6) The interests of the international community must be served. (7)The forum’s
regulation must be consistent with the international community’s traditions.
Jurisdiction in Civil Cases – In civil suits, municipal courts can extend their jurisdiction over
disputes between parties who appear within the territory of the forum state. Such jurisdiction is
based on either in personam or in rem principles.
Jurisdiction over Persons – In personam jurisdiction is the power of a court to decide matters
relating to a natural or juridical person physically present within the forum state. Natural persons
subject to in personam jurisdiction include nationals of the forum state, individuals physically
present within the state, individuals domiciled in the state, and individuals who consent to such
jurisdiction.
Juridical persons (or persona ficta) are entities, other than natural persons, that have sufficient
existence in the eyes of the law to function legally, sue and be sued, and make decisions through
agents.
Juridical persons are subject to the in personam jurisdiction of a municipal court in much the
same way that individuals are. Thus, legal entities created within a state are nationals of that state
—they are called domestic entities—and they may sue or be sued there. Foreign entities, however,
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