The established test for pre-action discovery under O 26A r 4 requires evidence indicating, beyond mere assertion, conjecture or suspicion, that all facts necessary to give rise to a right to curial relief may be able to be established; it does not require the applicant to positively establish the existence of a cause of action. Even if a Master errs in construing the jurisdictional requirement of O 26A r 4, the error will not be material if the requirement is necessarily satisfied on the correct construction. The question whether 'cause of action against' a potential party requires that curial relief be sought against that party (as opposed to the party being merely a necessary party) remains open.
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