In proceedings alleging misuse of market power under s 46 of the Trade Practices Act 1974 (Cth), documents evidencing discrete instances of similar anti-competitive conduct by the respondents in geographic markets other than the pleaded market are discoverable in principle where they are probative of the respondents' purpose in the pleaded market. The 'fishing' objection does not apply where the pleading raises the conduct as an issue and the applicant has unchallenged affidavit evidence supporting the existence of the documents. However, discovery may still be refused on grounds of oppressiveness, having regard to the value of the discovery and the burden imposed.
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