[29] Often in the past a proceeding was instituted in the expectation that the plaintiff had a good cause of action postponing a final decision as to the merits until all the discovery and inspection steps were completed.
[30] If it turned out upon a proper consideration of all relevant documents that the plaintiff did not have a cause of action, it causes, inter alia, much anguish, soul searching and results in wasted legal costs and time. It does nothing for the administration of justice that the party has to go down that path to determine whether he has a good cause of action.
[31] The object of the rule is to avoid that undesirable situation occurring and to enable a prospective plaintiff to see the relevant documents which the prospective defendant has or has had in his possession in order to make an informed decision as to whether he has a good cause of action.
[32] It is clear from the wording of the rule that the applicant does not have to show that he does have a good cause of action before he can obtain his order, and indeed to require him to do so would defeat the very object of the rule.
[33] On the other hand, an applicant would have to show more than a mere hunch, a hope or a suspicion that he may have a good cause of action. The fact that the end result of a successful application is a fishing expedition for evidence is not a ground for refusing relief. See Dunning v United Liverpool Hospitals (1973) 1 W.L.R. 586, 591 per Stamp LJ and Clarkson v DPP [1990] VicRp 65; (1990) VR 745, 758 per Murphy J.
[35] The prime object of the rule is to enable access to documents to enable an informed decision to be made. The fact that in the process the applicant gathers evidence also, is not a ground for refusing relief; it is an inevitable by-product of the procedure.
[36] The rule sets out what matters have to be considered and established on an application and places the onus on the applicant to establish the bases for an order. However, in my opinion the power should be exercised to give effect to the clear purpose of the provision which is to advance the administration of justice, namely, that a prospective plaintiff should be able to make an informed decision whether to proceed or not upon proper material before issuing his proceeding.
[37] By providing this facility to assist the decision making process, speculative or baseless claims can be avoided with a consequential saving in cost and time.
[38] These conclusions lead to a conclusion that the rule should be liberally applied.
...
[43] The rule is to enable a prospective plaintiff to make an informed decision. If an order is not made the only course open to the prospective plaintiff is to issue the proceeding and then put in operation procedures available to gain access to the other party's documents. This may involve an application for an interlocutory injunction in which a subpoena is issued to produce the documents at court on the application. Another course is the discovery process during the interlocutory steps. The practical result will be inspection later rather than sooner and the incurring of legal costs. If a decision is then made to discontinue, costs will have been unnecessarily incurred and time wasted, factors which reflect upon the administration of justice. The pragmatic approach supports a sooner rather than a later decision and an approach by the court to readily facilitate the making of an informed decision by a prospective plaintiff on proper materials at an early stage.
(Citations in original)