State immunity — Head of State immunity — Jurisdictional immunity — Absolute immunity of incumbent foreign head of State — Application for determination of paternity against foreign head of State — European Convention on Human Rights, 1950 — Article 6 — Article 8 — Right of extra-marital family to live a normal family life — Relationship between human rights and absolute immunity — Whether human rights taking precedence over immunity under certain conditions — Whether court barred from exercising jurisdiction

Human rights — Right to a fair trial — Right to a family life — Relationship between human rights and absolute immunity — Whether human rights taking precedence over immunity under certain conditions — Articles 6 and 8 of the European Convention on Human Rights, 1950 — The law of Austria