To conduct legal research, you narrow your problem into a specific question tied to a jurisdiction, find the primary sources (constitutions, statutes, regulations, and case law) that govern it, read them carefully, and verify they are still in force before you rely on them. The process is learnable without a law degree, but it rewards discipline: a vague question produces useless results, and outdated law is worse than no law at all.
Start With a Specific Question and the Right Jurisdiction
Write down, in plain language, what you actually need to know. “Can my landlord keep my security deposit if I gave 30 days’ notice?” is a workable question. “Landlord problems” is not.
Break your situation into who, what, when, and where. The “where” matters more than people expect, because jurisdiction decides which laws apply. A lease dispute in Texas is governed by Texas law, not California law, even if you recently moved. Federal law applies nationwide, but most everyday legal issues fall under state or local rules. Pinning down the right jurisdiction early keeps you from researching the wrong body of law entirely.
As you frame the question, jot down any legal terms you have already run into. If you heard “implied warranty of habitability” from a friend or a forum post, write it down. Those phrases become your search terms, and you can refine them as you learn more.
Know What Counts as the Law Versus What Just Explains It
Legal sources split into two categories, and mixing them up is the most common beginner mistake.
Primary sources are the law itself. There are four kinds:
- Constitutions, federal and state, which set the broadest rules and can void anything that conflicts with them.
- Statutes passed by Congress or a state legislature. Federal statutes are organized by subject into the United States Code.
- Regulations written by agencies under authority a statute gives them. Congress passes a clean air law; the EPA writes the pollution limits. Federal regulations sit in the Code of Federal Regulations.
- Case law: written opinions in which judges interpret statutes or apply constitutional principles to specific facts. Courts generally follow earlier decisions on similar issues, a principle known as precedent.
Secondary sources explain the law. Legal encyclopedias, treatises, law review articles, and practice guides fall here. A judge is not bound by anything a legal encyclopedia says, but these sources are often the best place to start on an unfamiliar topic because they give plain-language overviews and point you to the primary sources you need. Once a secondary source names a statute or case, go read that statute or case yourself.
Which Law Wins When Two Rules Conflict
Not all law carries equal weight. When rules conflict, the one higher in the hierarchy controls.
The U.S. Constitution sits at the top; no federal statute, state law, or regulation can override it. Federal statutes enacted by Congress take priority over conflicting state laws under the Supremacy Clause of Article VI. Below statutes sit agency regulations, which have legal force but cannot exceed the authority the statute granted the agency.
Each state has its own parallel hierarchy: state constitution over state statutes over state agency regulations. Within case law, decisions from higher courts bind lower courts in the same system. A ruling from your state’s supreme court is mandatory authority for every lower court in that state. A ruling from a court in a different state, or a lower court in your own state, is only persuasive. A judge can consider it, but does not have to follow it.
This hierarchy prevents a trap many self-researchers fall into: finding a favorable opinion from another state’s courts and assuming it controls their case. It does not, unless their own state’s courts have adopted similar reasoning.
Where to Find Legal Materials for Free
You do not need a paid subscription to find the law. Most primary materials are online at no cost.
Federal Statutes and Regulations
The Office of the Law Revision Counsel maintains the United States Code at uscode.house.gov, updated on a rolling basis. It is the most authoritative free source for federal statutory text.1Office of the Law Revision Counsel. The United States Code Federal regulations are searchable through the Electronic Code of Federal Regulations at ecfr.gov, a continuously updated version of the CFR. You can search by citation, keyword, or phrase.2eCFR. eCFR Home
State Statutes and Regulations
Every state legislature has a website hosting its statutes, though quality varies. Justia and the Legal Information Institute at Cornell University aggregate state statutes, case law, and regulations in one place, often with better search functionality than the official state sites.
Case Law
Google Scholar includes a legal opinions database covering federal and state appellate courts, with filters for jurisdiction and date. Justia and the Legal Information Institute also host extensive collections of court opinions.
Local and Municipal Codes
City and county ordinances are often the hardest to track down because state legislature sites rarely include them. Platforms like the Municode Library host searchable municipal codes for thousands of jurisdictions. Online versions may lag behind the most recent amendments, so treat them as a starting point, not the final word.
Public Law Libraries
Public law libraries are the most underused resource on this list. Many offer free on-site access to Westlaw and LexisNexis, which have more powerful search tools than any free website and are otherwise prohibitively expensive for individuals. Law librarians can also point you toward resources, and unlike a lawyer, doing so does not constitute legal advice.
How to Read a Legal Citation
Citations look like code until you learn the pattern.
A statute citation names the code, title, and section. “42 U.S.C. ยง 1983” means title 42 of the United States Code, section 1983. The title groups statutes by subject; the section pinpoints the provision.3Library of Congress. Citations for and Popular Names of Statutes State statute citations use the state code’s abbreviation and section number in the same way.
A case citation names the reporter, volume, and starting page. “Brown v. Board of Education, 347 U.S. 483 (1954)” starts on page 483 of volume 347 of the United States Reports and was decided in 1954. Federal appellate cases appear in the Federal Reporter (F.2d, F.3d, or F.4th depending on the series). Federal district court cases appear in the Federal Supplement (F. Supp.). State cases use their own reporter abbreviations.
Once you can decode citations, you can chase any reference in a secondary source or opinion back to the original document rather than trusting someone’s summary of it.
Reading Statutes, Cases, and Regulations
Statutes
Statutes follow predictable structures. Most start with a definitions section that tells you exactly what key terms mean within that law, and those definitions sometimes differ from everyday usage. Read them first, then find the section that addresses your issue.
Watch the signal words. “Shall” and “must” mean a requirement. “May” means discretion or permission. When a single statute uses both, the contrast is deliberate. Watch also for cross-references. A statute might apply “except as provided in Section 12,” and that exception could be the one that matters to you.
One detail people miss: a law’s effective date is not always the date it was signed. Some laws have delayed effective dates or phase in over time. Confirm the provision you are reading was actually in effect on the date your situation occurred.
Case Law
Reading an opinion means finding a few key pieces. What are the facts that brought the case to court? What legal issue was the court asked to decide? What is the court’s reasoning, and what is the holding, meaning the rule of law the court applied? Everything in the opinion that is not essential to the holding is called dicta, and while it can be interesting, it does not carry the same binding weight.
Note which court decided the case and when. A recent decision from your state’s highest court on your exact issue is the best possible authority. A decades-old ruling from a trial court in another state is background at most.
Regulations and Agency Guidance
Regulations have the force of law. When you find a relevant one in the Code of Federal Regulations or a state equivalent, treat it as seriously as a statute. Identify the issuing agency, what the rule requires or prohibits, and the penalties for violations.
Agency guidance documents are different. Policy statements, interpretive letters, manuals, and FAQs published by agencies explain how they apply the law but are generally not considered legally binding the way formal regulations are.4Congress.gov. Agency Use of Guidance Documents They reveal how an agency thinks, which has practical value, but a court is not required to defer to them. If a regulation says one thing and an agency FAQ suggests something slightly different, the regulation controls.
Verify the Law Is Still Current
This is where self-researchers most often go wrong. You find a statute or case that perfectly answers your question and you stop. But the statute may have been amended last year, and the case may have been overruled last month. Relying on outdated law is worse than finding nothing, because it gives you false confidence.
Statutes
Check the date of the version you are reading. The United States Code at uscode.house.gov shows the edition date and lists recent amendments in editorial notes attached to each section.1Office of the Law Revision Counsel. The United States Code State legislature websites similarly note when provisions were last amended. Working from a printed volume in a library, look for pocket parts or supplements tucked into the back cover; they contain amendments enacted after the bound volume was printed.
Case Law
Confirming a case is still good law requires a citator. The two major ones are KeyCite on Westlaw and Shepard’s Citations on LexisNexis. Both flag negative treatment with visual indicators. A red flag on Westlaw means the case has been overruled or reversed on at least one point; a yellow flag warns of negative treatment short of that. Shepard’s uses a red stop sign for strong negative treatment like reversal and cautionary indicators for less severe concerns.
Without a formal citator, you can still do a rough check. Search the case name in Google Scholar and look at the “cited by” results. If a later decision from a higher court in the same jurisdiction explicitly overrules or criticizes your case, that will usually surface. This is not as reliable as a citator, but it catches the obvious problems.
Keep Track of What You Find
Legal research rarely runs in a straight line. You start with one question, hit a statute that raises a new one, find a case that reads the statute differently than you expected, and end up somewhere you did not plan. Without a system, you will re-read the same sources or lose a useful case you found two hours ago.
Keep a running log. For statutes, record the code, title, and section. For cases, record the full citation and a one-sentence summary of the holding. For websites, save the URL and the date you accessed it, because legal databases update and pages change.
Summarize as you go. Write not just what a source says but how it connects to your question. “Section 42-301 requires 30 days’ written notice, but Jones v. Smith says email counts as written notice” is far more useful than a bare citation in a list.
When Self-Research Is Not Enough
There is a real line between researching legal information and applying it to your situation. Looking up what a statute says is legal information. Deciding how it applies to your particular facts and what you should do crosses into legal advice, which only a licensed attorney can properly provide.
Self-research works well for getting oriented, understanding your basic rights, preparing informed questions for a lawyer, or handling straightforward matters like small claims filings. It has real limits when the stakes are high, the law is ambiguous, multiple areas of law intersect, or a deadline leaves no room for error. Misreading a statute of limitations, for example, can permanently forfeit a valid claim.
If you cannot afford a lawyer, free help exists. The Legal Services Corporation funds 130 independent legal aid programs across every state and U.S. territory, providing civil legal assistance to households at or below 125% of the federal poverty guidelines.5Legal Services Corporation. LSC Homepage LawHelp.org connects people to free legal aid providers by state and offers tools for creating basic legal documents at no cost. Many state and local bar associations run lawyer referral services with low-cost initial consultations.