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Legal Research

Case law, statutes, regulations & legislation worldwide

Legal Research covers case law, statutes, regulations, and legislation across 15+ jurisdictions โ€” US, UK, India, Germany, Canada, Netherlands, EU, Japan, and more. It's a single tool for searching court decisions, federal regulations, Congressional bills, state legislation, dockets, and judge records.

Legal research normally means navigating multiple separate databases depending on the jurisdiction and document type. This tool normalizes access across them: search cases, drill into full text, trace citations, find the current version of a regulation, or check what bills a state legislature has passed โ€” all without switching platforms.

What you can do

  • Search case law across US, UK, India, Germany, Canada, and Netherlands courts
  • Get full case details, text, and citation networks
  • Search legislation across UK, US, EU, Germany, Japan, Canada, Poland, and Sweden
  • Search federal regulations (CFR), Regulations.gov, FDA, EPA, and vehicle safety databases
  • Search Congressional bills, the US Code, and all 50 state legislatures
  • Look up court dockets and judge profiles

Who it's for

Lawyers and paralegals doing case and statutory research. Compliance teams monitoring regulatory changes. Policy researchers and journalists tracking legislation. Law students building research skills across multiple jurisdictions.

How to use it

  1. Use search_cases with a country code (US/UK/IN/DE/CA/NL) and keywords to find relevant cases
  2. Call case_details with a case ID for the full text and metadata
  3. Use citation_analysis to map how a case has been cited
  4. Use search_legislation with a country code for statutory research, then legislation_details for the full text
  5. Use the regulatory skills (search_cfr, search_fda, search_epa) for US administrative law

Getting started

search_cases and search_legislation work immediately with no credentials for most jurisdictions. Connect optional API keys for higher rate limits and access to dockets, state bills, and judge records.

Search Case Law

Search court opinions across jurisdictions. US, UK, India, Germany, Canada, Netherlands. Set country param to route (default: US). Returns case names, courts, dates, citations, excerpts.

Returns: Case names, courts, dates, citations, excerpts, and URLs
Case Details

Get full details for a specific court case by its CourtListener cluster ID or citation string. Returns the full case name, court, filing date, all citations, opinion text excerpt, and citation count.

Returns: Full case name, court, date, all citations, opinion excerpt, and citation count
Citation Analysis

Analyze citation networks for a court case โ€” find what it cites and what cites it. Supports US (CourtListener) and Canadian (CanLII) cases. For US, provide case_id or citation. For Canada, provide case_id, database_id, and country=CA.

Returns: Citation counts, list of citing cases, and list of cited cases with metadata
Search Legislation

Search statutes and legislation across jurisdictions. UK, US, EU (default: all three), Germany, Japan, Canada, Poland, Sweden. Set country param to filter.

Returns: Legislation titles, types, dates, summaries, and URLs grouped by jurisdiction
Legislation Details

Get full details for a specific piece of legislation by its identifier. UK: "ukpga/2018/12". US: Federal Register doc number "2025-23783". EU: CELEX number "32016R0679".

Returns: Full legislation title, description, sections/contents, dates, and links to full text
Search Regulations (CFR)

Search the Code of Federal Regulations โ€” all 50 CFR titles covering every US federal regulation. Updated daily. Returns CFR references, section headings, and regulation text excerpts.

Returns: CFR references (e.g. "40 CFR ยง 50.1"), headings, excerpts, and eCFR URLs
Search Rulemaking

Search federal rulemaking documents, proposed rules, and public comments on Regulations.gov. Covers all federal agencies (EPA, FDA, DOL, etc.). Find rules, notices, and comment periods.

Returns: Document IDs, titles, agencies, types, posted dates, docket IDs, comment status, and Regulations.gov URLs
Search Statutes (US Code)

Search the United States Code โ€” all codified federal statutory law. Also searches public laws and Statutes at Large via GovInfo. Returns statute titles, citations, and links to full text.

Returns: Statute titles, package IDs, download links, and GovInfo URLs
Search Congressional Bills

Search US Congressional bills, resolutions, and enacted laws. Browse current and historical sessions, filter by bill type.

Returns: Bill numbers, titles, sponsors, latest actions, and congress.gov URLs
Search State Bills

Search legislative bills across all 50 US states, DC, and Puerto Rico. Find state-level bills, resolutions, and legislative activity.

Returns: Bill identifiers, titles, states, chambers, sessions, and Open States URLs
Search Dockets

Search PACER/RECAP federal court dockets and filings. Access millions of federal district, appellate, and bankruptcy court filings from the RECAP archive.

Returns: Case names, courts, docket numbers, filing dates, and CourtListener URLs
Search Judges

Search judicial profiles โ€” US federal and state judges with appointment details, courts, political affiliations, and biographical information.

Returns: Judge names, courts, appointment details, political affiliations, and profile URLs
Search FDA Data

Search FDA drug labels, adverse events, and device recalls via openFDA. Covers prescription drugs, OTC medications, medical device safety data.

Returns: Drug label details, adverse event reports, or device recall information from FDA databases
Search EPA Enforcement

Search EPA enforcement and compliance data for regulated facilities. Covers Clean Air Act, Clean Water Act, and RCRA violations, inspections, and penalties.

Returns: Facility names, addresses, compliance status, violations, penalties, and inspection history
Search Vehicle Safety

Search NHTSA vehicle safety recalls by make, model, year, or keyword. Covers all manufacturer safety recalls with defect descriptions and remedies.

Returns: Recall campaign numbers, components, defect summaries, consequences, and remedies
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v0.052026-04-06
  • search_epa: clearer error when search is too broad โ€” now suggests adding a state filter
  • search_vehicle_safety: fixed vehicle lookup when make, model, and year are all provided; partial inputs (e.g. make only) now use text search automatically
v0.042026-03-25
  • Added UK case law (The National Archives Find Case Law) and Netherlands (Rechtspraak) to search_cases
  • Added Poland (Sejm ELI) and Sweden (Riksdagen) to search_legislation
  • Added search_fda: drug labels, adverse events, device recalls via openFDA
  • Added search_epa: environmental enforcement and compliance data via EPA ECHO
  • Added search_vehicle_safety: NHTSA vehicle safety recalls
  • Now covers 15+ jurisdictions with 15 skills
v0.032026-03-25
  • Restructured: skills are now generic with country routing (search_cases country=IN instead of search_india_cases)
  • Added search_cases support for US, India, Germany, Canada (CanLII)
  • Added search_legislation support for UK, US, EU, Germany, Japan, Canada
  • Added search_dockets for PACER/RECAP federal court filings
  • Added search_judges for judicial profiles and appointments
  • Added citation_analysis for citation network analysis (US + Canada)
  • Added search_regulations for federal rulemaking documents (Regulations.gov)
  • Added CourtListener authenticated access (5000 req/hr, dockets, judges, citations)
  • Added CanLII integration for Canadian case law and legislation
  • Now covers 10+ jurisdictions with 11 skills
v0.022026-03-25
  • Massive expansion: added CFR, Congress, US Code, state legislation, Indian cases, German law
v0.012026-03-24
  • Initial release: US case law, UK/US/EU legislation, Japan laws

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Frequently Asked Questions

How do I search cases in a specific country?

`search_cases` supports the US, UK, India, Germany, Canada, and the Netherlands. Set `country` to route the query.

What do I need for the full opinion text?

Use `case_details` with a CourtListener cluster ID or a citation string to get the case name, court, date, citations, and excerpt.

Can I see what a case cites and who cites it?

`citation_analysis` maps the citation network for US and Canadian cases so you can trace precedent and follow-on treatment.

Does this include statutes and regulations too?

Yes. Use `search_legislation`, `search_cfr`, `search_regulations`, `search_fda`, `search_epa`, `search_vehicle_safety`, `search_statutes`, `search_congress`, `search_state_bills`, `search_dockets`, or `search_judges` depending on the source you need.