PRACTICE AND PROCEDURE — Interlocutory application by Seven Network (Operations) Limited, Australian Capital Equity Pty Ltd and Herbert Smith Freehills under r 24.15 of Federal Court Rules 2011 (Cth) to set aside subpoenas to produce documents — subpoenas issued at the request of respondents who succeeded in defending proceedings for defamation and who seek orders that third parties pay their costs of the proceedings — whether subpoenas have a legitimate forensic purpose — whether scope of subpoenas should be confined
