(1) This section applies to a disclosure of information if it might reasonably be expected -
(a) to affect adversely -
(i) the security of the State,
(ii) the defence of the State, or
(iii) the international relations of the State,
or
(b) to reveal, or lead to the revelation of, the identity of a person who has given information in confidence to a public body in relation to the enforcement or administration of the law or any other source of such information given in confidence.
(2) Without prejudice to the generality of subsection (1) this section applies to a disclosure of information -
(a) which was obtained or prepared for the purpose of intelligence in respect of the security or defence of the State,
(b) which relates to -
(i) the tactics, strategy or operations of the Defence Forces in or outside the State, or
(ii) the detection, prevention or suppression of activities calculated or tending to undermine the public order or the authority of the State (which expression has the same
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