“The immunity enjoyed by [the claimant as Governor] does not extend beyond the shores of Nigeria….It is lawful for the Crown in the United Kingdom to arrest, detain and prosecute the Governor for money laundering offences….the only person that can lay claim to sovereign immunity is the President of the Federal Republic of Nigeria under the doctrine of sovereign immunity in international law and duly accredited Nigerian Diplomats under the Vienna Convention”
“It is a basic principle of international law that one sovereign state (the forum state) does not adjudicate on the conduct of a foreign state. The foreign state is entitled to procedural immunity from the process of the forum state. This immunity extends to both criminal and civil liability. State immunity probably grew from the historical immunity of the person of the monarch. In any event, such personal immunity of a head of state persist to the present day; a head of state is entitled to the same immunity as the state itself”
“ (i)The sovereignty in question has been divided as such at the moment of the adoption of the relevant constitution and not devolved from a higher constitutional authority; (ii) The sub-state enjoys substantial and genuine autonomy which is not subject to the intervention of the federal government; (iii) The sub-state has substantial competence over traditional governmental functions within its territory which is not subject to the intervention of the federal government; (iv) Such autonomy and such competence are irrevocable in the absence of the consent of the sub-states as necessary; (v) It is not a necessary pre-condition for qualification for immunity that the sub-state possesses foreign relations power (Sayce; Mellenger)”
“Under international law, a state is an entity that has a defined territory and a permanent population, under the control of its own government, and that engages in, or has the capacity to engage in, formal relations with other such entities”
“The capacity to enter into relations with other States is an aspect of the existence of the entity in question…It is a capacity not limited to sovereign nations, since both international organizations and non-independent States can enter into legal relations with other entities under the rules of international law. But it is essential for a sovereign state to be able to create such legal relations with other units as it sees fit. Where this is not present, the entity cannot be an independent state”
“The general principle here seems to be that immunity is to be applied only to an entity which shows itself to have a personality of its own in its foreign relations with other countries”
“The Parliament and Government of Canada shall have all Powers necessary or Proper for performing the Obligations of Canada or any Provinces thereof, as Part of the British Empire towards Foreign Countries, arising under Treaties between the Empire and such Foreign Countries”