Search UK case law down to the paragraph.
Search over 74,000 judgments from The National Archives' Find Case Law service, refreshed each night, and open the numbered paragraph relevant to your question. Results link back to the source so you can read the court's reasoning in context. The invited pilot is founder-hosted; installation on your firm's own hardware is the planned customer offering.
What it does
Pinpoint results
Hits are numbered paragraphs — the unit you actually cite. One click opens that paragraph inside the full judgment, and copy cite gives you a paste-ready pinpoint reference.
Search by proposition
Describe the point of law in plain English. Semantic search finds the passage even when it shares no keywords with your query, while case names, NCNs and "quoted phrases" still match exactly first.
Follow cited cases
Recognised citations inside a judgment open the cited case where we hold it, and link out to Find Case Law where we don't. Your research trail is kept in your browser only.
Designed for customer hosting
We plan to offer search on your firm's own hardware. Today's invited pilot runs on founder-operated infrastructure, so queries are sent to that service. Use public, non-confidential questions for a demo.
What a result looks like
Illustrative layout only — live results come from the published corpus.
Research behind the product
Alongside Trialist search, we are researching procedural law — including limitation, service, disclosure and relief from sanctions — and how an assistant could support its answers with sources. That assistant remains an internal prototype and is not part of the search product.
Primary sources
The search index contains over 4.8 million paragraphs from more than 74,000 judgments, updated nightly from Find Case Law. A result opens in its full judgment, with paragraph references you can check and copy.
Evaluation planned
We have reserved 3,112 cases by decision date for future model evaluation. An independently reviewed assessment of legal correctness remains to be completed.
Source checking
The assistant prototype checks recognised citations and quotes against available sources and reports failures. These checks do not establish that an answer's legal reasoning is correct.
Current scope and future work
Trialist returns judgment passages. Generated answers and other derived research features need further validation and written confirmation of permitted use before deployment.
Licensed, and deliberately narrow
Trialist is operated by Executive Force AI Ltd as a Find Case Law transactional licensee, and is built to the exact purpose of that licence: to publish the current version of judgments and provide search facilities to find and access them. Takedowns and amendments are enforced when a page is served, not just when the corpus is built, and Crown copyright is attributed throughout.
What Trialist does not do
- No outcome prediction and no judge profiling.
- No generated legal advice or AI-written answers.
- No citator "overruled / applied" verdicts.
Search excerpts come from published judgments that you can read and check for yourself.
See it on your own research
Demos are run against the live corpus and take about twenty minutes — bring a public, non-confidential question you looked up this week. We are recruiting barristers' chambers, litigation firms and costs lawyers as design partners.