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Pritzker Legal Research Center

Counterfeit Medicines in Nigeria

Legal System

Nigeria has a mixed legal system of common law, Islamic (religious) law, and customary law. As a result of colonialism, English law (including the common law) significantly influences the Nigerian legal system. 

Research Guides

These research guides are useful starting points for understanding Nigeria's legal system and well as the sources of law in Nigeria. These guides include links to recommended online resources that provide access to Nigerian legal materials. 


The current constitution is the Constitution of the Federal Republic of Nigeria that came into force on May 29, 1999. The constitution has been amended since it came into force (in 2011 and 2018). 

Laws and Regulations

Laws and regulations from Nigeria can be found through government websites and other databases (see below for suggestions). The domain for an URL for a Nigerian government website is often 

Selected Nigerian laws on health and pharmaceuticals include:

If you conduct a Google search to retrieve a law or regulation, make sure to evaluate the website's authoritativeness and reputability. Laws and regulations from Nigeria are not available on Westlaw or Lexis. 

Cases and Jurisprudence

Cases from Nigeria can be found online through free websites. Older cases may also be found in print. If you need an older case that you cannot find online, the research guides mentioned above contain lists of law reports which you can search for on NUsearch by publication name. 

Westlaw and Lexis do not contain any coverage of Nigerian cases. Because free resources typically have very limited search functions, you cannot exclusively rely on full-text searching to find cases. Databases also differ on scope of coverage and when they were last updated. Make sure to consult a variety of secondary sources to see what cases are identified in those sources and then use these resources to retrieve those cases and to cross-check your work. 

Subject Collections

These databases provide access to laws, regulations, and cases from various countries around the world (including Nigeria) pertaining to specific subjects and topics, including criminal law, health, and intellectual property. These resources often have better search and navigation functions than foreign government websites. 

For additional suggestions of subject law collections beyond the selected databases listed below, see the GlobaLex Foreign Law - Subject Law Collections on the Web research guide