Please note - this article is under review.
Section 54 was a provision in the 1993 Privacy Act, which was replaced in December 2020 by the Privacy Act 2020. Section 30 of the 2020 Act is the equivalent provision. This provision allows is for an agency (the one that holds the information) to apply for authorisation to disclose information in very specific circumstances and where there is a significant public interest in doing so.