Australian Building and Construction Commissioner v Collier and Ors

The Australian Building and Construction Commissioner (the applicant) brought proceedings against Collier and Ors (the respondents) in the Federal Court of Australia. The dispute concerned an application made pursuant to sections 499, 500, and 503(1) of the *Fair Work Act 2009* (Cth). The applicant sought leave to re-open its case and adduce evidence in reply after its case had been closed, in the context of a civil penalty proceeding.

The central legal issue before the Court was whether the applicant should be granted leave to re-open its case and present further evidence in reply, notwithstanding that its case had already been closed. This involved considering the principles governing the re-opening of a case in civil penalty proceedings and the potential impact of such a decision on the respondents.

Judge Nicholls granted the applicant leave to re-open its case. The Court applied the established principles for granting leave to re-open a case, which generally require demonstrating that the evidence sought to be adduced is material, that it could not have been obtained with reasonable diligence prior to the close of the case, and that its admission would not cause undue prejudice to the opposing party. The Court found that these criteria were met in this instance, allowing the applicant to present its reply evidence.