Anglo American Investments Pty Ltd (Trustee) v Commissioner of Taxation

In the matter of Anglo American Investments Pty Ltd (Trustee) v Commissioner of Taxation, the Court was tasked with determining whether the Commissioner of Taxation could be released from the implied undertaking regarding certain affidavits and documents filed in other proceedings. The primary focus was on whether these materials could be used to challenge the credibility of a key witness, Mr. Gould, who was facing criminal charges related to perverting the course of justice. Additionally, the Court considered the Commissioner’s applications for a certificate under section 128 of the Evidence Act 1995 (Cth) and a suppression order under section 37F of the Federal Court of Australia Act 1976 (Cth), which were deemed premature since the witness had not yet been cross-examined.

The Court held that the Commissioner could be released from the implied undertaking to use specific affidavits and documents from related proceedings. These materials were relevant for cross-examining Mr. Gould and challenging the credibility of Anglo American, the applicant. The Court reasoned that while evidence that only affects a witness's credit is generally inadmissible, there are exceptions under sections 102 and 103 of the Evidence Act. These sections allow for evidence that could substantially affect the witness's credibility, particularly if it pertains to whether the witness knowingly or recklessly made false statements. The Court concluded that releasing the Commissioner from the implied undertaking was necessary to ensure a fair trial and allow the Commissioner to challenge Anglo American’s evidence effectively.

The Court issued several orders, including releasing the Commissioner from the implied undertaking to use specific affidavits and documents from related proceedings to challenge Mr. Gould's credibility. Additionally, the Court stood over the applications for a section 128 certificate and a suppression order until the trial. The Court also ordered that Anglo American pay the Commissioner’s costs for the interlocutory applications, reserving the costs of the stood-over application for later determination.