37Power to callU.K.
(1)Subject as follows, the Assembly may require any person—
(a)to attend Assembly proceedings for the purpose of giving evidence, or
(b)to produce for the purposes of the Assembly (or a committee of the Assembly or a sub-committee of such a committee) documents in the possession, or under the control, of the person,
concerning any matter relevant to the exercise by the Welsh Ministers of any of their functions.
(2)The Assembly may not impose a requirement under subsection (1) on a person who is not involved in the exercise of functions, or the carrying on of activities, in relation to Wales.
(3)The Assembly may not impose a requirement under subsection (1) on a person who—
(a)is or has been a Minister of the Crown, or
(b)serves or has served in the department of a Minister of the Crown,
in relation to the exercise of any functions of a Minister of the Crown.
(4)The Assembly—
(a)may not impose a requirement under subsection (1) on a person who is a full-time judge of any court, and
(b)may not impose such a requirement on a person who is not within paragraph (a) but who is or has been a member of any court or tribunal in connection with the exercise of functions as such a member.
(5)Where a requirement under subsection (1) is imposed on a person who is or has been a member of the staff of the Welsh Assembly Government (or a person seconded to work for the Welsh Assembly Government) in relation to the exercise of any functions of the Welsh Ministers, the First Minister or the Counsel General, any of them may issue a direction under subsection (6).
(6)A direction under this subsection is a direction—
(a)that the person on whom the requirement was imposed need not comply with it, and
(b)that the requirement is instead to be complied with by another person specified in the direction.
(7)The powers conferred by subsection (1)—
(a)may be exercised by and for the purposes of the Audit Committee, and
(b)may be exercised by and for the purposes of any other committee of the Assembly, or any sub-committee of any committee of the Assembly, if the committee or sub-committee is expressly authorised to do so by the Assembly (whether by the standing orders or otherwise).
(8)A person is not obliged under this section to answer any question or produce any document which the person would be entitled to refuse to answer or produce in or for the purposes of proceedings in a court in England and Wales.
(9)A person acting as prosecutor in criminal proceedings is not obliged under this section to answer any question or produce any document concerning the operation of the system of criminal prosecution in any particular case if the appropriate officer—
(a)considers that answering the question or producing the document might prejudice criminal proceedings in the case or would otherwise be contrary to the public interest, and
(b)has authorised the person to decline to answer the question or produce the document on that ground.
(10)In subsection (9) “the appropriate officer” means—
(a)if the proceedings were instituted by or on behalf of the Welsh Ministers, the First Minister or the Counsel General, the Counsel General, and
(b)otherwise, the Attorney General.