(1) A head shall refuse to grant an FOI request if -
(a) the disclosure of the record concerned is prohibited by law of the European Union or any enactment (other than a provision specified in column (3) of Part 1 or 2 of Schedule 3 of an enactment specified in that Schedule), or
(b) the non-disclosure of the record is authorised by any such enactment in certain circumstances and the case is one in which the head would, pursuant to the enactment, refuse to disclose the record.
(2) A joint committee of both Houses of the Oireachtas shall, if authorised in that behalf by both such Houses (and such a committee so authorised is referred to subsequently in this section as "the committee") -
(a) review from time to time the operation of any provisions of any enactment that authorise or require the non-disclosure of a record (other than a provision specified in the said column (3)) for the purpose of ascertaining whether, having regard to the provisions, purposes and spirit of this Act -
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