124.This section exempts information if this is required for the purpose of avoiding an infringement of the privileges of either House of Parliament. Subsection (2) provides that the duty to confirm or deny does not apply insofar as that exemption is required for the purpose of avoiding an infringement of the privileges of either House.
125.Subsections (3) and (4) make provision for the Speaker of the House of Commons, in relation to that House, and the Clerk of the Parliaments, in relation to the House of Lords, to sign certificates as conclusive evidence that the exemption applies.
Commentary on Sections Part II:  Exempt information Section 34: Parliamentary privilege