s 37 Communications with Her Majesty, etc. and honours.
(1) Information is exempt information if it relates to— (a) communications with the Sovereign, (aa) communications with the heir to, or the person who is for the time being second in line of succession to, the Throne, (ab) communications with a person who has subsequently acceded to the Throne or become heir to, or second in line to, the Throne, (ac) communications with other members of the Royal Family (other than communications which fall within any of paragraphs (a) to (ab) because they are made or received on behalf of a person falling within any of those paragraphs), and (ad) communications with the Royal Household (other than communications which fall within any of paragraphs (a) to (ac) because they are made or received on behalf of a person falling within any of those paragraphs), or (b) the conferring by the Crown of any honour or dignity. (2) The duty to confirm or deny does not arise in relation to information which is (or if it were held by the public authority would be) exempt information by virtue of subsection (1).