(1) Subject to subsections (2) and (3), for the purpose of the performance of every function under this Part the Board shall presume that the claimant and the respondent or respondents are each of full capacity.

(2) If -

(a) rules under section 46 require an application under section 11 to include a statement that the claimant is of full age, or

(b) rules under that section require the Board, before it deals with a claimant or a respondent under this Part, to seek confirmation from the claimant or the respondent that he or she is of full age,

then subsection (1), in so far as it relates to a person's being of full age, shall not apply unless and until that requirement of those rules is complied with or that confirmation is given by the claimant or the respondent.