(1) A person may be guilty of a Group A or Group B offence whether or not  -

(a) he was a British citizen at any material time;

(b) he was in England and Wales at any such time.

(2) On a charge of conspiracy to commit a Group A offence, or on a charge of conspiracy to defraud in England and Wales, the defendant may be guilty of the offence whether or not  -

(a) he became a party to the conspiracy in England and Wales;

(b) any act or omission or other event in relation to the conspiracy occurred in England and Wales.

(3) On a charge of attempting to commit a Group A offence, the defendant may be guilty of the offence whether or not  -

(a) the attempt was made in England and Wales;

(b) it had an effect in England and Wales.

(4) Subsection (1)(a) does not apply where jurisdiction is given to try the offence in question by an enactment which makes provision by reference to the nationality of the person charged.

(5) Subsection (2) does not apply in relation to any charge under the Criminal Law Act 1977 [1977 c. 45.] brought by virtue of section 1A of that Act.