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Finding Treaties

UN Treaty Collection website is a great starting point. It includes:

•The United Nations Treaty Series (UNTS, 1946 - )
•Multilateral Treaties Deposited with the Secretary General (MTDS) 
•League of Nations, Treaty Series (LNTS, 1920 -1946)
Westlaw International Materials  contains International Legal Materials (ASIL, 1962 - ) containing introductory notes to important new multilateral treaties.
HeinOnline holds ILM from 1962 to pre-current volume. Conduct an advanced search for 'International Legal Materials' as a publication title
WorldLII is a free legal information research database covering case law, legislation and other materials from 48 jurisdictions in 20 countries.
The New York University School of Law produces a collection of legal research guides covering foreign and international law.

International law

International Criminal Court (ICC) Legal Tools the ICC Legal Tools project website provides free and immediate access to a wealth of information on international criminal law and justice. The project holds the potential to be the leading information provider in the area of international criminal law.

EISIL electronic Information System for International Law. Developed by the American Society of International Law (ASIL).

World LII the World Legal Information Institute (WorldLII) is a free, independent and non-profit global legal research facility. Over 270 databases from 48 jurisdictions in 20 countries are included in the initial release of WorldLII.


Australasian Legal Information Institute includes full text of some cases from various Australian courts and Australian legislation.


Access to Justice Network canadian justice and legal information and services.

South Africa

Wits Law School the School of Law from the University of Witwatersrand, Johannesburg, SA. Provides information about the Constitutional Court of SA (including an archive of all decisions of the court) and South African legal materials and links.


FindLaw offers various features for the lawyer and non-lawyer (does have an American bias). FindLaw index is quite extensive, visitors can search FindLaw as well as search the full text of law reviews online. The new LawCrawler searches the contents of legal sites on the Internet and can be limited by country.

Google Scholar click on the "Legal opinions and journals" radio button. This enables people to find and read full text legal opinions from U.S. federal and state district, appellate and supreme courts using Google Scholar. You can find these opinions by searching for cases or by topics or other queries.

US Supreme Court Decisions

International law - OSCOLA

OSCOLA 2006: citing international law section: The 4th ed of OSCOLA does not cover International Law, so check this guide.

See also page 28 onwards on the Lincoln University guide to OSCOLA.

Finding UN Documents

United Nations Digital Library is best for searching by subject. Includes UN documents, voting data, speeches and maps.
ODS Search is best for searching by document symbol (e.g. S/2010/240). It includes Official Documents of the UN, beginning in 1993. Older UN documents are added to the system on a daily basis.