(1)  None of the following is compellable to give evidence:

(a) the Sovereign;

(b) the Governor-General;

(c) the Governor of a State;

(d) the Administrator of a Territory;

(e) a foreign sovereign or the Head of State of a foreign country.

(2)  A member of a House of an Australian Parliament is not compellable to give evidence if the member, if compelled to give evidence, would be prevented from attending –

(a) a sitting of that House, or a joint sitting of that Parliament; or

(b) a meeting of a committee of that House or that Parliament of which he or she is a member.