Aircraft hijacking projects a vexing problem of criminal jurisdiction. In order to comprehend the ramifications of the problem fully let us take a model case. Suppose that the control over a commercial aircraft—registered in Brazil and leased to an Israeli airline—is forcibly seized, in the course of flight over France, by an Arab nationalist who is a citizen of Jordan, and the aircraft is hijacked to Algeria. The act described is an international offence, as defined by Article 1 of the 1970 Hague Convention for the Suppression of Unlawful Seizure of Aircraft:
Any person who on board an aircraft in flight:
(a) unlawfully, by force or threat thereof, or by any other form of intimidation, seizes, or exercises control of, that aircraft, or attempts to perform any such act, or
(b) is an accomplice of a person who performs or attempts to perform any such act
commits an offence (hereinafter referred to as ‘the offence’).