Supreme Court Rules 1987

(1) Where a defendant opposes a grant and the plaintiff disputes the standing of the defendant to do so, the plaintiff shall, in his statement of claim or affidavit, allege the absence of standing.

(2) Where a party claims a grant of administration and another party alleges absence of title of the claimant to do so, the party alleging absence of title shall, in his pleadings, allege facts which, if proved, will show that he has title to claim the grant.