15.—(1) A document is signed on behalf of an NHS Trust if it is signed on its behalf by a director of the trust or by any person authorised generally or specifically to sign the document on its behalf and a document so signed is for any purpose other than those mentioned in paragraph (3), validly executed by an NHS trust.
(2) For the purposes of any enactment or rule of law relating to the authentication of documents under the law of Scotland, a document is validly executed by an NHS trust if it is subscribed on behalf of the trust by—
(a)the chairman and one of the directors of the trust; or
(b)a director of the trust and one other person authorised generally or specifically to subscribe the document; or
(c)two persons not being directors of the trust, authorised to subscribe the document on behalf of the trust,
notwithstanding that such subscription is not effected by witnesses and the document is not sealed with the seal of the trust.
(3) A document which bears to be executed by an NHS trust in accordance with paragraph (2) is, in relation to such execution, a probative document.