“s.1 General immunity from jurisdiction (1) A State is immune from the jurisdiction of the courts of the United Kingdom except as provided in the following provisions of this Part of this Act. (2) A court shall give effect to the immunity conferred by this section even though the State does not appear in the proceedings in question. … s.5 Personal injuries and damage to property A State is not immune as respects proceedings in respect of— (a) death or personal injury; or (b) damage to or loss of tangible property, caused by an act or omission in the United Kingdom. … s.14 States entitled to immunities and privileges (1) The immunities and privileges conferred by this Part of this Act apply to any foreign or commonwealth State other than the United Kingdom; and references to a State include references to— (a) the sovereign or other head of that State in his public capacity; (b) the government of that State; and (c) any department of that government, but not to any entity (hereafter referred to as a “separate entity”) which is distinct from the executive organs of the government of the State and capable of suing or being sued. (2) A separate entity is immune from the jurisdiction of the courts of the United Kingdom if, and only if— (a) the proceedings relate to anything done by it in the exercise of sovereign authority; and (b) the circumstances are such that a State (or, in the case of proceedings to which section 10 above applies, a State which is not a party to the Brussels Convention) would have been so immune. (3) If a separate entity (not being a State’s central bank or other monetary authority) submits to the jurisdiction in respect of proceedings in the case of which it is entitled to immunity by virtue of subsection (2) above, subsections (1) to (4) of section 13 above shall apply to it in respect of those proceedings as if references to a State were references to that entity. … (5) Section 12 above applies to proceedings against the constituent territories of a federal State; and Her Majesty may by Order in Council provide for the other provisions of this Part of this Act to apply to any such constituent territory specified in the Order as they apply to a State. … s.20 Heads of State (1) Subject to the provisions of this section and to any necessary modifications, theDiplomatic Privileges Act 1964 shall apply to— (a) a sovereign or other head of State; (b) members of his family forming part of his household; and (c) his private servants, as it applies to the head of a diplomatic mission, to members of his family forming part of his household and to his private servants. (2) The immunities and privileges conferred by virtue of subsection (1)(a) and (b) above shall not be subject to the restrictions by reference to the restrictions by reference to nationality or residence mentioned in Article 37(1) or 38 in Schedule 1 to the said Act of 1964 … (5) This section applies to the sovereign or other head of any State on which immunities and privileges are conferred by Part I of this Act and is without prejudice to the application of that Part to any such sovereign or head of State in his public capacity. s.21 Evidence by certificate A certificate by or on behalf of the Secretary of State shall be conclusive evidence on any question— (a) whether any country is a State for the purposes of Part I of this Act, whether any territory is a constituent territory of a federal State for those purposes or as to the person or persons to be regarded for those purposes as the head or government of a State...”
“The effect is that a head of state will, under the statute as at international law, enjoy state immunity ratione personae so long as he is in office, and after he ceases to hold office will enjoy the concomitant immunity ratione materiae ‘in respect of acts performed [by him] in the exercise of his functions [as head of state],’ the critical question being ‘whether the conduct was engaged in under colour of or in ostensible exercise of the head of state’s public authority’... In this context, the contrast is drawn between governmental acts, which are functions of the head of state, and private acts, which are not.”
“… the central criterion for the extension of personal immunity to members of the diplomat’s household (apart perhaps from spouses) is dependence, rather than performance by any such persons of diplomatic duties or functions on the diplomat’s behalf”
“… There is no hint of a suggestion that the functional basis for either the immunity itself, or its limited extension to persons other than the head of state, was intended to be any different than it had been understood to be in connection with diplomats and their families. There is in particular no indication that the use of the same phrase was, for the first time, intended to accommodate the notion that close members of a head of state’s family deserved head of state immunity for the better performance of their own royal, governmental or constitutional duties.”
“When ... a claim is brought against a state ... and state immunity is claimed, it is necessary to consider what is the relevant act which forms the basis of the claim: is this, under the old terminology, an act jure gestionis or is it an act jure imperii: is it ... a ‘private act’ or is it a ‘sovereign or public act’, a private act meaning in this context an act of a private law character such as a private citizen might have entered into?”
“It is the nature of the act that determines whether it is to be characterised as jure imperii or jure gestionis. The process of characterisation requires that the act must be considered in its context.”
“a malevolent and unlawful act of a private individual who happened to be an official; not the act of an official”
“… the classification of the relevant act was taken to depend on its juridical character and not on the state’s purpose in doing it, save in cases where that purpose threw light on its juridical character.” [56] Lord Hoffmann made the same point in Jones at [92] “If the act is done under colour of official authority, the purpose of personal gratification … should be irrelevant.”
“General Sanz Roldán, the Defendant’s agents and/or agents or contractors of the CNI acting on the Defendant’s instructions placed the Claimant… under physical surveillance which included vehicle and personal surveillance, trespassing onto her property… and hacking into her/their telephones and computers”