When a court needs to see secret security information, you need to know that there was a rule about this. This rule was part of a law called the Overseas Investment Act 2005, which helps manage national security and public order risks. The rule was called section 115, but it is no longer in force because it was repealed on 28 November 2023 by the Security Information in Proceedings (Repeals and Amendments) Act 2022, which you can find more information about on the New Zealand legislation website.