(1) This rule applies if:
(a) a party claims:
(i) privilege from production of a document; or
(ii) that the party is unable to produce a document; and
(b) another party, by written notice, challenges the claim.
(2) The party making the claim must, within 7 days after the other party challenges the claim, file an affidavit setting out details of the claim.
(3) The court may inspect the document for the purpose of determining whether the claim is valid.