By a vote of 12 to 3, the court rejected both alleged exceptions to the doctrine of state immunity proposed by Italy. Firstly, the court rejected a theory of "territorial tort", in which Italy would be entitled to ignore immunity because torts were committed on Italian territory. The court analyzed this exception within the narrow confines of the facts of the case: the torts were committed by an armed force during armed hostilities. The court noted that while the general territorial tort certainly has support for
jure gestionis, or commercial activities of state, it is clear that such a tort is not meant to apply to armed forces engaged in an armed conflict. The court cited the
European Convention on State Immunity, the
United Nations Convention on Jurisdictional Immunities of States and Their Property, and the state practice of a number of countries to establish that there was little support for extending the territorial tort as much as Italy proposed. Secondly, the court rejected a more expansive exception to state immunity, by which immunity would be lost if serious human rights violations were alleged and no reparations were forthcoming. Italy advanced three "strands" to this argument: Italy argued that the gravity of the violations required elimination of state immunity, that not to eliminate state immunity would effectively derogate from a peremptory, or
jus cogens norm; and immunity was lost because the claimants had no other means of redress. Italy also argued that these three strands, if not each independently sufficient to warrant a loss of immunity, were sufficient when they were combined. Addressing the first strand, the court noted that allowing a judicial enquiry into the gravity of the crime would defeat the purpose of immunity, which is to avoid the trial process. Additionally, that there is little support in international conventions and state practice for the idea that severity of a crime could eliminate state immunity. The court distinguished the
Pinochet case, in which Augusto Pinochet was arrested despite immunity as a head of state, by stating that
Pinochet was a criminal case against an individual, not a civil case against a state itself. Addressing the second strand, the court distinguished between procedural and substantive rules and found that there was no conflict between substantive
jus cogens prohibitions on enslavement, for instance, and procedural state immunity. The court noted that this was consistent with the ICJ's rulings in
Armed Activities in the Congo and
Arrest Warrant of 11 April 2000, in which
jus cogens rules did not confer jurisdiction or abrogate immunities of officials. The court further noted that no state practice supported the argument that
jus cogens rules displace immunity. Addressing the third strand, the Court distinguished between immunity and the substantive rules of international law by which Germany might still owe reparations. A finding of immunity does not equal a finding that Germany did not owe reparations. The Court indicated that under that theory, the existence of immunity would depend on the final failure of a diplomatic solution, but the failure would be exceptionally difficult to identify. Finally, having rejected the strands of Italy's argument individually, the Court rejected their aggregate as well, specifying that immunity could not be based on a substantive balancing test applied by national courts. After finding that Italy was obliged to grant Germany immunity before Italian courts, the Court found that the petition for enforcement of a Greek judgment (application for
exequatur) was subject to the same rules and should likewise have been denied due to immunity. By a vote of 14 to 1, the court found that Italy was obliged, by a means of its own choosing, to render void the decisions of its courts infringing the state immunity due to Germany. Dissenting Judge Bennouna said there was a difference between state immunity and state responsibility. Granting immunity does not exonerate one from responsibility. In this case the court should have recognised that Germany admitted to their crimes, and therefore are responsible. If Germany wishes to have immunity, they need to assume responsibility in their own national courts, otherwise, they cannot rest on their state immunity. ==Development==