Research & Cite Check
The Research surface in Irys One gives legal professionals three integrated tools for legal research:
Case Law Search
Run dual search across U.S. case law powered by CourtListener's database of 50M+ citations:
- Keyword / boolean search - traditional query operators for precise control.
- AI semantic search - natural language questions that the AI converts into relevant results.
Both searches run in parallel so you get comprehensive coverage in a single query. Filter by jurisdiction, date range, judge, topic, and more.
Cite Check
Verify every citation in a document or research output:
- Existence check - confirms the cited case actually exists (anti-hallucination).
- Format accuracy - validates that the citation string matches the real case.
- Good law status - flags cases that have been overruled, reversed, or otherwise negatively treated.
Cite Check catches hallucinated or stale references before they reach a filing.
Deep Research
Toggle on Deep Research in the AI Assistant for multi-source, iterative research:
- Searches across internal documents, case law, web sources, and statutes.
- The AI reasons about knowledge gaps and performs additional queries automatically.
- Produces structured research reports with inline citations.
All research tools are available inside a Matter, so the AI understands your case context when generating queries and reports.