(1) This section applies to -
(a) an act consisting of the grant or the grant in part under section 8 or by virtue of section 14 or 34 of a request under section 7,
(b) an act consisting of the furnishing to a person under section 18 of a statement specified in that section, or
(c) an act consisting of the publication under section 15 or 16 of a document specified in that section,
being an act that was required or authorised by, and complied with the provisions of, this Act or was reasonably believed by the head concerned to have been so required or authorised and to comply with the provisions of this Act.
(2) Subject to the provisions of this section, civil or criminal proceedings shall not lie in any court -
(a) against -
(i) the State,
(ii) a public body,
(iv) a director or a member of the staff of a public body, or
(v) a person providing a service for a public body under a contract for services with the body,
in respect of an act to which this section applies or