Sch 2 para 28
(1) The application of NAO's seal is to be authenticated by the signature of— (a) a member of NAO, or (b) any person authorised (whether generally or specifically) for the purpose by a member of NAO. (2) A document purporting to be duly executed under NAO's seal or signed on its behalf— (a) is to be received in evidence, and (b) is to be taken to be executed or signed in that way, unless the contrary is proved. (3) This paragraph does not extend to Scotland.