Scope: General U.S. legal research education. Examples are fictional. Source descriptions are distinguished from RLS's educational recommendations; no conclusion about a particular dispute is offered.
Start with the problem's location in law
A quotation can be accurate and still fail to answer the question being asked. A rule from one state, a federal administrative scheme, or a court addressing another kind of proceeding may not govern the present problem. Before interpreting the words, identify the legal system and subject to which they belong.
RLS recommends writing a short scope statement at the start of a research file: the subject, relevant places, dates, institutions, and the decision the research must inform. Leave unknowns visible. A missing location or date is a research question, not a blank to fill with the first convenient authority.
Separate a court's authority from the law governing the issue
The U.S. Courts glossary describes jurisdiction in terms of a court's legal authority to hear and decide a type of case.[2] That is not the same inquiry as identifying every rule that governs the parties' rights. A forum may need to consider law from another legal system, and more than one source can bear on different parts of a dispute.
Suppose a fictional sale crosses state lines. The place where a complaint might be filed, the rules governing the transaction, and the rules controlling the procedure are distinct research questions. This example does not supply their answers. It shows why a single label such as federal or state is usually an incomplete research plan.
Map the institutions before ranking the sources
The federal and state court systems have different foundations and structures, as the U.S. Courts' comparison explains.[1] Their decisions cannot be arranged on one universal ladder without considering the issue and the relevant system. A prestigious court's opinion is not automatically the controlling answer to every question.
For each decision, record the issuing court and its relationship to the forum under study. For each statute or regulation, identify the government that issued it and the subject it regulates. Then research the authority relationship that matters to this issue. Distinguish a source you must follow from one you consult for persuasive reasoning.
Check the facts that connect the rule to the problem
Legal applicability can depend on connections that a short online claim omits: where an event occurred, when it occurred, the identity or status of a party, or the type of activity involved. Do not assume that a rule about one category applies to a neighboring category because the everyday labels sound similar.
In a fictional licensing question, make a table of the activity, location, date, and issuing authority before searching for an exemption. If the provision applies only to a specified license or class of applicant, preserve that limitation. The factual map helps identify which definitions and exceptions must be read.
Research overlapping sources without merging them
A problem may require separate searches in statutes, regulations, judicial opinions, and applicable local materials. Record the function of each source. A regulation implementing a statute and an opinion interpreting that regulation should not be summarized as though they were interchangeable texts.
Keep separate propositions in separate notes: what the enactment says, what implementing materials add, and what the decision resolves. Where sources interact, explain that interaction with citations. If a conflict-of-laws, preemption, jurisdictional, or procedural issue arises, name it as a question requiring its own authorities.
Make the conclusion as narrow as the research
A useful conclusion identifies the jurisdiction and the issue it addresses. It also states the factual assumptions on which the analysis depends. A researched rule for one setting should not become advice for an unidentified person in an unidentified place.
The scope statement can now be revised into a boundary for the answer: under these sources, in this setting, and subject to these unresolved points. Readers should be able to see both the result and what would require a new search. Interpretation becomes more reliable when the researcher first establishes which law is being interpreted.
Source notes
- [1] U.S. Courts — Comparing Federal & State CourtsSource checked: 2026-10-13
- [2] U.S. Courts — GlossarySource checked: 2026-10-13