Advanced Legal Research

🧑🏾‍💼Advanced Legal Research Unit 7 – Electronic Legal Research Methods

Electronic legal research has revolutionized how lawyers find and analyze legal information. Online databases like Westlaw and LexisNexis provide comprehensive access to primary and secondary sources, enabling efficient searches of case law, statutes, and regulations. Mastering electronic research methods is crucial for legal professionals. Key skills include using Boolean operators, navigating online databases, evaluating source credibility, and properly citing electronic sources. These techniques allow researchers to quickly find relevant authorities and stay current on legal developments.

Key Concepts and Terminology

  • Electronic legal research involves using online databases and resources to find legal information, including case law, statutes, regulations, and secondary sources
  • Primary sources are the law itself, such as cases, statutes, and regulations, while secondary sources provide commentary, analysis, and explanations of the law (treatises, law review articles, legal encyclopedias)
  • Subscription-based databases, such as Westlaw, LexisNexis, and Bloomberg Law, offer comprehensive legal resources and advanced search capabilities
    • These databases require paid subscriptions and are commonly used by legal professionals and law students
  • Free online legal resources, such as Google Scholar, Findlaw, and government websites, provide access to some legal information at no cost
  • Citators, like Shepard's (LexisNexis) and KeyCite (Westlaw), help determine the current status of a case or statute and identify related authorities
  • Headnotes are summaries of key legal points in a case, often assigned by the database's editorial staff, which can be used to find similar cases
  • Annotations are notes added to statutes or regulations that provide summaries of relevant case law, analysis, and cross-references to related provisions
  • Westlaw, LexisNexis, and Bloomberg Law are the three major subscription-based electronic legal databases used in the United States
    • These databases offer extensive coverage of case law, statutes, regulations, and secondary sources
    • They provide powerful search engines, citators, and tools for organizing and analyzing legal information
  • Westlaw is known for its Key Number System, which organizes case law by legal topics and subtopics, making it easier to find relevant cases
  • LexisNexis offers a comprehensive collection of secondary sources, including treatises, law reviews, and news sources
  • Bloomberg Law integrates legal research with business and financial information, making it useful for corporate and transactional law
  • Free databases, such as Google Scholar and Cornell's Legal Information Institute (LII), provide access to some case law and statutes
    • These resources may have limitations in coverage, currency, and search functionality compared to subscription-based databases
  • Many courts and government agencies maintain websites with access to their own case law, statutes, and regulations
  • Specialized databases focus on specific areas of law, such as HeinOnline for law journals and treaties, and PLI for continuing legal education materials

Search Strategies and Techniques

  • Develop a research plan by identifying key issues, relevant jurisdiction, and time frame before beginning an electronic legal research project
  • Use secondary sources to gain an overview of a legal topic and identify primary sources to explore further
  • Utilize headnotes and annotations to locate relevant cases and statutes related to a specific legal issue
  • Employ both natural language and Boolean searches to find relevant authorities
    • Natural language searches use plain language phrases and allow the database to determine relevance
    • Boolean searches use connectors like AND, OR, and NOT to create precise search queries
  • Narrow searches by jurisdiction, date range, and document type to refine results and find the most relevant authorities
  • Expand searches by following links to related documents, such as cases cited within a decision or statutes referenced in an annotation
  • Take advantage of search filters, such as those for specific courts, judges, or attorneys, to further refine search results
  • Use citators to update research and ensure that cases and statutes are still good law

Boolean Operators and Advanced Filtering

  • Boolean operators (AND, OR, NOT) allow researchers to create precise search queries by connecting keywords and phrases
    • AND narrows search results by requiring all terms to be present
    • OR expands search results by including any of the connected terms
    • NOT excludes documents containing the specified term
  • Proximity connectors (e.g., /s, /p, /n in Westlaw; w/s, w/p, w/n in LexisNexis) specify the desired distance between search terms
    • /s or w/s requires terms to be in the same sentence
    • /p or w/p requires terms to be in the same paragraph
    • /n or w/n requires terms to be within a certain number of words of each other
  • Wildcards and truncation symbols (e.g., *, !) can be used to search for variations of a word or phrase
  • Quotation marks around a phrase search for the exact phrase rather than the individual words
  • Parentheses group search terms and connectors to create more complex queries
  • Field searching allows researchers to limit searches to specific parts of a document, such as the title, author, or date
  • Advanced filtering options, such as jurisdiction, court, and date range, help narrow search results to the most relevant documents
  • Use headnotes and topics to identify relevant cases within a database
    • Headnotes summarize key legal points and are often organized by topic or key number
    • Clicking on a headnote or topic link will retrieve other cases discussing the same legal issue
  • Utilize case citators (Shepard's or KeyCite) to find later cases that have cited the case being researched
    • Citators also indicate the treatment of the case, such as whether it has been overturned, distinguished, or followed
  • Search for cases by party name, citation, or docket number if known
  • Access statutes through databases' statutory collections or by using citation services like Westlaw's StatutesPlus or LexisNexis' Shepard's Statutes
  • Navigate statutory codes by browsing titles, chapters, and sections or by using the database's search functions
  • Use annotations to find cases interpreting or applying specific statutory provisions
  • Track the legislative history of a statute through session laws, bill texts, and committee reports, which are often available in electronic databases
  • Monitor pending legislation and recently enacted laws through databases' legislative services and alerts

Citing Electronic Sources

  • Follow the citation style required by your jurisdiction or the specific legal writing project (e.g., Bluebook, ALWD)
  • Include the name of the database and the unique identifier or citation assigned by the database when citing electronic sources
    • Example: Smith v. Jones, 123 F. Supp. 2d 456 (D. Mass. 2000), available on Westlaw at 2000 WL 123456
  • Provide the date the electronic source was accessed, as online content may change over time
  • Use "last visited" or "last updated" date for websites and online articles that do not have a traditional publication date
  • Cite online versions of print sources, such as law review articles or treatises, similarly to their print counterparts, but include the database name and identifying information
  • When citing electronic sources in court filings or other legal documents, verify local court rules for any specific requirements or preferences
  • Maintain consistency in citation format throughout a legal writing project
  • Double-check citations for accuracy and proper formatting before submitting legal work
  • Assess the authority of the source by considering the reputation of the database, publisher, or author
    • Subscription-based databases like Westlaw and LexisNexis are generally considered highly authoritative
    • Government websites and databases are official sources for statutes, regulations, and case law
  • Evaluate the scope of coverage, including jurisdictions, time periods, and types of legal materials included
  • Consider the currency of the information and how frequently the database or website is updated
    • Look for "current through" dates or update schedules to determine the timeliness of the content
  • Examine the accuracy and reliability of the information by comparing it to other reputable sources
  • Assess the ease of use and search functionality of the database or website
    • User-friendly interfaces, robust search options, and helpful tools like citators and annotations can enhance the research experience
  • Consider the cost and accessibility of the resource, especially when choosing between subscription-based and free sources
  • Consult with librarians, professors, or experienced legal professionals for guidance on the strengths and limitations of specific online legal resources

Practical Applications and Case Studies

  • Scenario 1: A criminal defense attorney researching a Fourth Amendment search and seizure issue
    • Begin by searching for relevant headnotes and key numbers in Westlaw or LexisNexis
    • Refine the search by jurisdiction (e.g., U.S. Supreme Court, state supreme court) and date range
    • Use citators to find more recent cases and assess the current status of key precedents
    • Consult secondary sources, such as treatises and law review articles, for in-depth analysis of the issue
  • Scenario 2: A law student writing a research memo on a contract law problem
    • Start with a broad search using key terms related to the contract law issue
    • Narrow the search by applying filters for jurisdiction, court level, and date range
    • Use Boolean connectors and proximity searches to find cases with fact patterns similar to the research problem
    • Review statutory provisions and annotations related to the contract law issue
    • Cite check cases and statutes using Shepard's or KeyCite to ensure they are still good law
  • Scenario 3: A legal scholar researching the legislative history of a federal statute
    • Begin by locating the statute in the U.S. Code through Westlaw, LexisNexis, or a free source like Cornell's LII
    • Use the annotations and references to trace the statute back to its enacting session law
    • Search for committee reports, hearings, and debates related to the bill using databases like ProQuest Congressional or HeinOnline
    • Consult secondary sources, such as treatises and law review articles, that discuss the statute's legislative history and intent
  • Scenario 4: A paralegal updating research on a tort law issue for a senior attorney
    • Review the attorney's previous research and identify key cases and statutes
    • Use citators (Shepard's or KeyCite) to check for new cases that have cited or discussed the key authorities
    • Conduct additional searches using Boolean operators and filters to find any recent developments in the relevant jurisdiction
    • Organize the updated research in a clear, concise memo or report, with proper citations to electronic sources


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© 2024 Fiveable Inc. All rights reserved.
AP® and SAT® are trademarks registered by the College Board, which is not affiliated with, and does not endorse this website.