(cf SCR Part 23, rule
3(8); DCR Part 22, rule 3(8))
If at any time after party B's affidavit is made, and before the end of the
hearing, party B becomes aware--
(a) that any document within the class or classes specified in the relevant order for discovery (not being an excluded document) but not included in Part 1 of the list of documents is within, or has come into, party B's possession, or
(b) that any document included in Part 1 of the list of documents which was claimed to be a privileged document was not, or has ceased to be, a privileged document,party B must forthwith give written notice to party A of that fact, and comply with rule 21.5 in respect of the document, as if the document had been included in Part 1 of the list of documents and the list had been served on the date of the giving of the notice.