Hellaby v The State Bank of South Australia

This matter came before the High Court of Australia concerning an application for special leave to appeal. The applicant, represented by Mr. J.R. Sackar, QC, and Mr. A.R. Harris, sought to challenge a decision of a lower court. The respondent, The State Bank of South Australia, was represented by Mr. T.A. Gray, QC, and Mr. N.J.T. Swan.

The central dispute revolved around the validity and scope of a court rule concerning discovery. The applicant argued that the rule, which permitted discovery based on the "real possibility" that general litigation might ensue, was disproportionate to its stated purpose of regulating pleading practice and procedure. Specifically, the applicant contended that the rule was too broad and could be used to obtain general discovery to ascertain the existence of a case, rather than to facilitate the initiation of proceedings. A secondary issue raised was the application of the doctrine of proportionality and the concept of an effective remedy in the context of such rules.

The applicant's primary argument was that the rule exceeded the legislative power granted by the relevant section, which was intended to govern pleading practice and procedure. The applicant asserted that the rule's width, requiring only a "real possibility" of litigation without a clear indication of the cause of action, allowed for its use as a tool for general discovery, which was disproportionate to the purpose of initiating actions. The applicant also argued that the lower court had failed to consider the concept of an effective remedy, as articulated in the case of *Cojuangco*, which requires an order to be necessary in the interests of justice to provide an effective remedy for a complained-of wrong.