This section applies to a joint inquiry for which the Ministers responsible (“the relevant Ministers”) are not all United Kingdom Ministers and are not all Northern Ireland Ministers.

A limitation imposed by section 27(2), 28(2), 29(2) or 30(2) or (3) on the terms of reference of an inquiry for which a particular Minister is responsible has effect only to the extent that it applies in relation to all of the relevant Ministers.

A limitation imposed by section 27(3), 28(3) or (4), 29(3) or (4) or 30(4) or (5) on the powers conferred on the chairman of an inquiry for which a particular Minister is responsible has effect only to the extent that it applies in relation to all of the relevant Ministers.

Subsections (6) and (7) of section 30 do not apply if at least one of the relevant Ministers is a United Kingdom Minister.