The authority your agent needs
Take curated, authoritative case law to your favourite AI agent.
Already have an account? Sign in.
Cite with Confidence
Legal research engineered for precision.
No Search-Query Retention
Res Ipsa does not retain search-query content; query-free access logs support security, abuse prevention, and billing.
The Daily Digest
New judgments and legislative amendments, distilled and delivered each morning.
Enterprise MCP Support
Securely connect your firm’s AI infrastructure—including Claude and ChatGPT.
Leading Authority, Noted Up
Search by doctrine, fact pattern, or citation and get the cases that govern your point—ranked by how the profession cites them, each checked for whether a later court has distinguished, doubted, or overruled it.
Illustrative — the same Res Ipsa result, shown in two agents. Claude and Cowork are trademarks of Anthropic; ChatGPT is a trademark of OpenAI. Res Ipsa is independent and not affiliated with or endorsed by them.
Know what governs — and whether it still stands
The authorities that govern a point — ranked by how the profession cites them, each noted up for whether it still stands.
-
Still good law
R v Taueki
[2005] 2 NZLR 372 · Court of Appeal · leading authority · 500+ cites
-
Still good law
Hessell v R
[2010] NZSC 135 · Supreme Court · leading authority · 100+ cites
-
Overruled
Hessell v R
[2009] NZCA 450 · superseded by [2010] NZSC 135
-
Still good law
Bathurst Resources v L&M Coal Holdings
[2021] NZSC 85 · Supreme Court · leading authority · 30+ cites
-
Still good law
Firm PI 1 v Zurich Australian Insurance
[2014] NZSC 147 · Supreme Court · leading authority · 60+ cites
-
Still good law
Vector Gas v Bay of Plenty Energy
[2010] NZSC 5 · Supreme Court · well-established · 40+ cites