Houses of the Oireachtas (Inquiries, Privileges and Procedures) Act 2013
Scope of section 67 .
68.— (1) Subject to subsection (2) and section 67(5) , (6) and (7), a direction may be given to, and any proceedings to enforce the direction may be served on or otherwise made upon—
( a) any person in the State,
( b) any Irish citizen outside the State, or
( c) any person in an Irish registered vessel or aircraft or an Irish diplomatic mission outside the State.
(2) Paragraphs (a) and (c) of subsection (1) shall not apply to a person who at the time concerned is entitled to diplomatic immunity in the State.