Skip to content
Law dissertations

How Do I Find Cases, Legislation and Commentary for a Law Dissertation?

A provisional dissertation area becomes manageable when you create a student-owned plan for finding and recording legal materials. This guide gives UK law students a repeatable source-map process without choosing a topic, conducting research or supplying authorities for assessed work.

8 minute read
Updated 18 September 2026
UK-focused guidance

The short answer

Start with a source map, not a broad case search. Put your own question into plain language, set jurisdiction and date limits, split it into concepts and synonyms, then use current secondary orientation material to learn vocabulary and citations to investigate. Search legislation and judgments separately, log what you searched and when, and check currency and authority before relying on material.[1] [2]

Key points

  • Make your question searchable before collecting material on a broad area.
  • Use secondary sources for orientation, then read and verify relevant primary law.[1]
  • Keep commentary, legislation and judgments in separate search lanes; log checks still needed.
  • A tutor can teach a generic workflow, but cannot research, supply or check sources for assessed work.

Where should I start when I need sources for a law dissertation?

Do not paste a whole dissertation question into one search box or collect every case in a broad area. First make your question searchable. A source map records issue, legal system, period, alternative concepts, source type and checks required before a result supports a proposition. It is a working plan, not a conclusion about your argument.

When the area is unfamiliar, start with current secondary orientation material: a textbook, legal encyclopedia, practice overview or scholarly article. It supplies vocabulary, debates and references you must trace yourself. Commentary points to primary material but never replaces reading legislation or a judgment on which you may rely.[1]

Course guidance, assessment wording and your cut-off set scope. A question may need legislation, case law, commentary and official or parliamentary material; another may not. If you cannot state jurisdiction, period or central issue, consider narrowing a law dissertation question before an unfocused search.

  • Separate orientation reading from primary material you may later verify and use.
  • Treat overview citations as leads to investigate, not a ready-made research pack.[1]

Sources[1] Legal Research Skills Programme[2] UK law library guide

What goes in a source map before I search?

A compact source map forces choices often left implicit: relevant jurisdiction, period, retrievable wording and material each search should find. Planning scope, keywords and sources, then saving enough detail to return to useful material, makes research reproducible.[2]

Make jurisdiction explicit. “UK law” may be too broad where rules differ between England and Wales, Scotland or Northern Ireland, or where a question sets an international or retained-EU dimension. Derive the boundary from the assessment, legal issue and course guidance, not a generic guide. Distinguish the historical period analysed from the date law must be checked.

  • Question: your wording and the defined issue each search addresses.
  • Scope: jurisdiction, legal system, historical start point and currency cut-off.
  • Concepts: legal terms, ordinary descriptions, statutory wording and variants.
  • Search lanes: orientation commentary, legislation, judgments and justified additional material.
  • Log: authority or status check, citation details, date searched and next action.[2]

Sources[2] UK law library guide

How do I turn my question into legal-search terms?

Underline each part of your question: legal concept, actor or relationship, remedy or outcome, statutory phrase, jurisdiction and time marker. Treat them as concept groups, not one long sentence. For each, note ordinary wording, formal terms from orientation reading, singular or plural forms, relevant historical language and abbreviations only after you know their full form.

Test one group first, then combine groups when you understand how a catalogue or legal service treats terms. Record wording, filters and date. A short result list does not prove no material exists: jurisdiction may be wrong, wording too narrow, source type unsuitable or vocabulary incomplete.

Searching is iterative. Orientation reading yields better terms; better terms improve the primary-law search; results reveal synonyms, dates or limits. Logging each change is more dependable and repeatable than one-off searching.[1] [2]

  • Record filters with keywords: jurisdiction, court, document type or date range where used.

Sources[1] Legal Research Skills Programme[2] UK law library guide

Which sources should I search first for commentary, cases and legislation?

Use your library catalogue and legal-research services to locate current textbooks, legal encyclopedias and journal material. Scholarly commentary can identify interpretations and debates; practice material can orient you. A catalogue may not expose every subscription item, so ask a librarian about subject indexes and databases.[3]

Search official legislation separately, using a title, keyword or document type. Record jurisdiction and whether text is original, as-enacted or revised. Revised text may incorporate amendments, but revision coverage and update status vary, particularly for older secondary legislation. Check status, changes and explanatory information for the exact provision and purpose; never assume a result is current.[4] [5]

Search the official public judgment service separately by case name, neutral citation or keywords; use institutional resources for later history or treatment. It includes England and Wales judgments and UK-wide decisions from the highest courts, but not every decision: some lower-court hearings and tribunal decisions are oral or untranscribed. No results call for new terms or coverage checks, not a conclusion that no decision exists.[6]

Finding commentary is not composing a chapter. After independently gathering and checking material, see writing a law dissertation literature review for structuring that chapter.

  • Keep legislation and judgment searches distinct so document-specific checks remain visible.
  • Ask about library access routes and training; institutions do not provide identical tools.[3]

Sources[1] Legal Research Skills Programme[3] UK law library guide[4] The National Archives[5] The National Archives[6] The National Archives

How do I check currency and authority before I rely on a source?

Finding a source differs from relying on it. Ask whether material is relevant to your question, authoritative enough for the point, current at your cut-off and capable of supporting the proposed use. These prompts guide your own checking; they do not declare a source sufficient for your dissertation.

For legislation, retain the exact provision and version, distinguish original from revised text, and note status, amendments and commencement. Revisit it if the project remains open. For a judgment, retain case name, court, decision date, neutral citation where provided, report citation where appropriate and pinpoint, then prompt yourself to check later history or treatment.[4] [5] [6]

For commentary, record author, title, publication date, edition or issue, jurisdictional focus, the limited potentially relevant claim and possible later developments. Check format against course requirements. OSCOLA publishes guidance on legal citations, but this article is not a citation manual and assessment instructions remain operative.[7]

  • Legislation: provision, version, status, amendments, commencement and date checked.
  • Judgments: court, date, citations, pinpoint and later-history or treatment check.
  • Commentary: author, publication details, jurisdictional focus, relevance and later developments.

Sources[4] The National Archives[5] The National Archives[6] The National Archives[7] Official OSCOLA resource

What should I put in my research log, and when should I ask for help?

A research log makes separate searches repeatable. For each, record date; question or concept group; jurisdiction and date scope; source type; catalogue or service; exact string; filters; saved result or citation; provisional relevance; authority or currency checks still needed; and next action. This enables efficient revisiting and updating.[2]

Ask a supervisor or librarian precise process questions about scope, access, a database feature or an assessment rule. Explain the boundary you set, searches attempted and where the process became unclear. They can advise within their roles; you remain responsible for every search decision, proposition, source choice, citation and submitted word.

One-to-one support may teach a generic source-map method, practise separating concepts from a generic prompt, or identify whether your independently created process is too broad, narrow or poorly recorded. The Law Tutors does not write, rewrite, substantially edit, research, fact-check, supply or select sources or authorities, paraphrase, or complete assessed work. The Law Tutors does not check citations. Read about ethical dissertation tutoring.

To practise a student-owned workflow on generic material, explore one-to-one law dissertation tutoring or find a tutor. The purpose is an independent process, not a bespoke source list or dissertation content.

  • Log exact searches and filters, not only sources you keep.[2]
  • State outstanding checks so a lead is not mistaken for verified support.
  • Use external help for generic process learning, never assessed-work research or completion.

Sources[2] UK law library guide

Common questions

Frequently asked questions

Should I begin with cases or secondary sources?

If the area is unfamiliar, begin with current secondary orientation sources for vocabulary, context and citations to investigate. Then read and check underlying legislation or judgments relevant to your question. Commentary does not substitute for verifying primary material.[1]

How do I turn my dissertation question into useful search terms?

Split your question into concept groups: legal issue, actor or relationship, remedy, statutory wording, jurisdiction and period. Test alternatives, log exact searches and filters, and revise the list as orientation reading improves your vocabulary.[1] [2]

How do I know whether legislation is current?

Record whether text is original or revised, then inspect the official service’s status and changes information for the needed provision. Do not assume equal revision coverage, especially for older secondary legislation; recheck near your cut-off if the project remains open.[4] [5]

Does a public case-law search contain every court decision?

No. The official public collection is useful for published digital judgments, but not every decision is included: some hearings or tribunal decisions are not transcribed. Reconsider terms, coverage and library resources before treating no results as conclusive.[6]

What should I record in a legal research log?

Record date, concept group, jurisdiction and date limits, source type, service, exact terms and filters, citations, provisional relevance, outstanding checks and next action. This creates a retraceable record and eases rerunning a search.[2]

What can a tutor explain without doing my dissertation research for me?

A tutor can teach generic source mapping, demonstrate generic search planning and help you recognise process problems in your independently created plan. A tutor cannot research, fact-check, supply or select authorities, write, rewrite, substantially edit, paraphrase, check citations or complete assessed work.

One-to-one support

Practise a student-owned research process

If a generic source-map method would help you organise independent searches, explore one-to-one dissertation tutoring. The Law Tutors teaches transferable process skills only and does not write, rewrite, substantially edit, research, fact-check, supply or select sources or authorities, paraphrase, or complete assessed work. The Law Tutors does not check citations.

Editorial details

Published by The Law Tutors

Updated 18 September 2026. Educational information only; students should check current assessment and institutional rules.

References

  1. [1]Making a research plan: sourcesLegal Research Skills Programme
  2. [2]Researching your law dissertation: Literature searchingUK law library guide
  3. [3]Researching your law dissertation: Finding materialsUK law library guide
  4. [4]legislation.gov.ukThe National Archives
  5. [5]Help and guidance: legislation.gov.ukThe National Archives
  6. [6]Find Case LawThe National Archives
  7. [7]OSCOLA: official legal citation standardOfficial OSCOLA resource