This page is designed to help you find and use NZ case law.
If you have a full citation to a reported case, use the Cardiff Index to Legal Abbreviations to decode the citation (if you need to), then search the library catalogue for the title of the report series; then find the full text - which may be print and/or online.
For just about everything else, start with index databases, then move on to full-text sources.
Two exceptions to that general rule:
Reported cases are published by commercial publishers. These cases are selected because of their legal significance, typically because they state or develop a point of law, so they are a good source of legal authority.
The New Zealand Law Reports (NZLR) is New Zealand's official law report series.
Other New Zealand report series deal with cases on a particular area of law.
An unreported case is the court document. The case may subsequently be reported, if it is significant; or it may remain unreported, in which case it is more likely to cite the authorities you need rather than to be an authoritative case.
Indexes and case citators
Reported cases
Unreported judgments
NZLII is a valuable source of full-text case law. Scope varies but includes Supreme Court, Court of Appeal and High Court decisions from at least 2005; plus a lot of decisions from tribunals and authorities.
There are 3 major publishing houses. Knowing who publishes what will speed up your search.
Butterworths = LexisNexis. They publish the official reports: the New Zealand Law Reports.
Brookers = Westlaw = Thomson Reuters
CCH = Intelliconnect = Wolters Kluwer