Water Users’ Group (NZ) Inc v Mahuta - [2023] 3 NZLR 211

Privilege — Waiver — Application for disclosure of legal opinion — Whether privilege waived — Whether disclosure was made with the authority of the privilege holder — Whether disclosure was involuntary or mistaken — Whether significant part of privileged document voluntarily disclosed in circumstances inconsistent with a claim of confidentiality — Whether collateral waiver applied — Evidence Act 2006 ss 65(2) and 65(4).