State immunity — Jurisdictional immunity — Assets claimed by foreign State — Insolvency of bank owned by foreign State — Deposits with bank in the name of embassy of foreign State — Whether liquidators required to pay sums to embassy — Whether failure to pay amounting to indirect impleading of foreign State — Commercial activity exception to immunity — State Immunity Act 1978, Sections 3(l)(a) and 6(3) — Republic of Iraq — Sanctions against — The law of England