Extradition — Double criminality — Requirement that alleged conduct would have constituted an offence under the law of the requested State if committed in that State — Obtaining by deception — Property obtained in one State as a result of deception practised in another State — Conspiracy to defraud — Fugitive Offenders Act 1967 — Requirement that extradition statute be strictly construed

Jurisdiction — Territorial — Deception practised in England leading to obtaining of property abroad — Whether an offence under English law

Relationship of international law and municipal law — Recognition and enforcement of foreign laws — Fiscal and exchange control laws creating criminal offences — Principle that such laws will not be enforced in extradition proceedings — The law of England