If you are just beginning to research a legal topic, consider the following questions to help clarify your information need and best starting points.
(Adapted from document created by Karen Wallace, Circulation/Reference Librarian at Drake Law Library.)
These documents each provide a worksheet which may help you keep track of progress on your research.
The list below gives some examples of the types of information you would find at each level.
Federal law
Cases that interpret the U.S. Constitution.and those involving rights under treaties, foreign states, and foreign nationals.
Crimes under statutes enacted by Congress.
Most cases involving federal laws or regulations (for example: tax, Social Security, broadcasting, civil rights)
Matters involving interstate and international commerce, including airline and railroad regulation.
Cases involving securities and commodities regulation, including takeover of publicly held corporations.
Admiralty cases.
Agriculture
Bankruptcy
Customs
Food and drug regulation
Immigration
Native Americans
Patent, copyright, and other intellectual property issues.
Postal
State law disputes when "diversity of citizenship" exists.
State law
Crimes under state legislation.
State constitutional issues and cases involving state laws or regulations.
Family law issues.
Real property issues.
Most private contract disputes (except those resolved under bankruptcy law).
Most issues involving the regulation of trades and professions.
Most professional malpractice issues.
Most issues involving the internal governance of business associations such as partnerships and corporations.
Most personal injury lawsuits.
Probate and inheritance matters.
Most traffic violations and registration of motor vehicles.
Contracts, domestic relations, durable powers of attorney for health care and financial management, motor vehicles, personal injuries, property taxation, worker’s compensation.
Both state and federal
Federal constitutional issues.
Crimes punishable under both federal and state law.
Certain civil rights claims.
"Class action" cases.
Certain disputes involving federal law, i.e., consumer protection, employment, environmental protection, health law, labor law, occupational safety, subsidized housing, transportation, unemployment insurance, veterans’ benefits, welfare law.
Local law (e.g., county or municipal law)
Animal control, building regulations, city land use, emergency services, housing, parking, streets and sidewalks, traffic, zoning.
Adapted from Kent C. Olson’s Legal Information: How to Find It, How to Use It (Phoenix, AZ: Oryx, 1999) and Stephen Elias & Susan Levinkind’s Legal Research: How to Find and Understand the Law (Berkeley, CA: Nolo, 2007). Additional information available from the U.S. Courts website.