Telstra Corporation Limited v Australian Competition and Consumer Commission (No 2) [2017] FCA 430

COSTS - whether an applicant for judicial review of a regulatory decision, having failed to obtain any relief by way of judicial review, should pay the costs of certain entities who were added as parties to the proceeding upon their own application after the proceeding had been commenced in circumstances where those entities had taken a substantial role in the public inquiry which had led to the regulatory decision and where they had an obvious legitimate commercial interest in the outcome of the inquiry and of the judicial review proceeding