Concept of Jurisdiction in International Law
Jurisdiction is an aspect of a State’s sovereignty, as the right to prescribe and enforce laws is an essential component of statehood. In the classic Westphalian understanding, this right has been limited to a State’s territory, a limitation that at the same time ensures that no State intervenes in another State’s affairs. This idea is no longer strictly applied, if it ever was. Exceptions that allow for limited extraterritorial jurisdiction have been carved out, and, moreover, the territoriality principle has been construed rather liberally. To be true, some States employ a rather strict presumption that the legislature does not normally intend to apply its laws extraterritorially, but such a presumption does not limit the discretion of the legislature to do just that if it so desires. The overlapping assertions that result from multiple States’ invocation of permissive principles of jurisdiction may almost unav...