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International Law Research Guide: Lexis, Westlaw & Bloomberg

A research guide to help researchers locate and understand public and private international law resources.

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Lexis - Research Basics

Lexis Advance: International & Comparative Law

Lexis Advance is not the strongest resource for international law research, but it does provide access to U.S. cases addressing international law issues, a lot of articles covering international and comparative law, and a number of good secondary sources. 

International law material available on Lexis can be found by:

- Select "Practice Area or Industry" tab
- Select "International Law"

OR try the browse feature:

- Select "Browse"
- Select "Sources"
- Select "By Practice Area"
- Select "International Law" to view sources such as:

  • Guide to International Legal Research
  • Handbook on International Commercial Arbitration
  • International Business Planning: Law and Taxation
  • International Court of Justice Advisory Opinions
  • International Court of Justice Filings
  • International Court of Justice Judgments
  • International Judicial Assistance
  • International Law Emerging Issues
  • International Law Update
  • International Legal Materials
  • International Trade Emerging Issues only
  • NAFTA Panel Review Decisions
  • Restatement of the Law 3d, Foreign Relations
  • Smit & Herzog on the Law of the European Union
  • U.S. Naval War College International Law Studies
  • US Court of International Trade Cases
  • World Arbitration Reporter

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Westlaw - Research Basics

Westlaw: International & Comparative Law

Westlaw contains a limited number of resources covering international and comparative law.

Cases, Documents, Treaties:

- U.S. cases dealing with international law issues
- U.S. Court of International Trade
- Department of State documents
- United States Treaties and Other International Agreements
- United States Treaties in Force
- United States Immigration Administrative Decisions
- International Court of Justice
- International Legal Materials

Federal Administrative Decisions and Guidance:

  • Department of Homeland Security
  • Department of Justice
  • Department of State
  • Federal Trade Commission
  • Foreign Service Grievance Board
  • International Trade Administration
  • International Trade Commission Decisions


- Secondary Sources: Law Reviews and journal articles on international law
- International and foreign law journals

Treatises & Practice Guides:

The best resources with legal analysis of international and comparative law will be located by selecting the "International Materials" link and then "Treatises".  You will also find about 75 Multi-National Treatises.  These multi-national treatises may be your best resource available on Westlaw.  Each multi-national compilation includes analysis arranged by country.  Examples include:

Westlaw - Practical Law:

The Practical Law resources on Westlaw offer a rich collection of up-to-date in-depth content including Practice Notes, Standard Documents and Clauses, Checklists, Toolkits, Legal Updates, Country-by-Country Legal Research Guidance, Country Comparison Tools, and Subject Specific Practice Resources.

There are several ways to locate international and comparative law resources using Practical Law:

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Bloomberg Law / Bloomberg BNA - Research Basics

Bloomberg Law & Bloomberg BNA:

Bloomberg Law contains a limited amount of legal analysis of international legal issues mostly focusing on business law.  But the database does include excellent news and current awareness resources

Bloomberg Law provides access to the Bloomberg BNA International Trade Reporter:

  • News about International trade.
  • Reports on trade issues by country can be found by selecting the All Countries link in the sidebar
  • The weekly report service provides comprehensive, current information on developments affecting the trade and international business policies of the US and major US trading partners. It includes the latest news and trends in US trade policy, including regulatory, legislative, and judicial developments, activities of the International Trade Commission, World Trade Organization, and Departments of State, Treasury & Commerce.

Bloomberg Law also provides access to:

Subscribe to BNA news services - Hastings students who want to receive a free weekly email update with the contents (and links to articles) of The BNA International Trade Reporter should sign-up here, then click on " BNA publications."