The circumstances in which the court had exceptionally recognised the extra-territorial exercise of jurisdiction by a state included where the state «through the effective control of the relevant territory and its inhabitants abroad as a consequence of military occupation or through the consent, invitation or acquiescence of the government of that territory, exercises all or some of the public powers normally to be exercised by [the government of that territory].» (newlawjournal.co.uk)
AEMA, which has other objections to PJM's plan, told regulators that for PJM to need to rerun its base residual auction, several events would need to occur, including: the Supreme Court declining to consider EPSA; the court deciding a second case to preclude FERC's exercise of jurisdiction over demand response participation in the capacity market; and FERC would need to rule on both the EPSA remand and other complaints. (utilitydive.com)
Finally, the district courts have been granted constitutional authority to issue the extraordinary writs of certiorari, prohibition, mandamus, quo warranto, and habeas corpus, as well as all other writs necessary to the complete exercise of their jurisdiction. (floridasupremecourt.org)