Supreme Court Rules 1987

(1) Where a party might, with the leave of the Court under rule 30.02, serve interrogatories on another party relating to a question between them in a proceeding, subject to this rule, the party may instead orally examine the other party on oath in relation to the question.

(2) A party must not orally examine another party unless:

(a) the other party has consented in accordance with rule 31.03 to being examined; or

(b) the Court has made an order under rule 31.03(9) requiring the other party to be examined.