"If a person, whether a citizen of the United Kingdom and Colonies or not, does in a convention country any act which, if he had done it in a part of the United Kingdom, would have made him guilty in that part of the United Kingdom ..."
"Murder is a common law crime which, before it became an extraterritorial offence if committed in a convention country undersection 4 of the Suppression of Terrorism Act 1978 , could not be prosecuted in the United Kingdom if it was committed abroad except in the case of a murder committed abroad by a British citizen:Offences Against the Person Act 1861 ... section 9, as amended."