How to write a law dissertation
A law dissertation argues about what the law is, why it matters or what it should become. Here is how to build one that holds up under a marker's reading.
A law dissertation is an extended argument that answers a focused legal question, usually around 10,000 to 12,000 words for an LLB and 15,000 to 20,000 for an LLM. Start with a narrow question, choose a research method that can answer it, and build every chapter around analysis of the law rather than description of it. Your handbook sets the exact word limit and the referencing style, which in most UK law schools is OSCOLA.
This guide covers the decisions that shape a strong dissertation: the question, the method, the structure and the writing. It is written for LLB and LLM students at UK universities.
Choosing a question worth answering
A topic is an area of law. A question is something you can argue about. "Surveillance and privacy" is a topic. "Does the Investigatory Powers Act 2016 give adequate protection to journalists' sources under Article 10?" is a question, and it tells you which sources to read and which arguments to test.
A good question sits where your interest, the available literature and your supervisor's expertise overlap. It should be narrow enough to answer properly in the word count and live enough that there is something to say. Our guide to choosing a dissertation topiccovers the general method in more detail.
Law dissertation topics that work
Areas that currently produce strong, answerable questions include:
- Employment law: worker status in the gig economy after Uber BV v Aslam [2021] UKSC 5, and whether the tests suit platform work
- Tort: secondary victims of psychiatric injury after Paul v Royal Wolverhampton NHS Trust [2024] UKSC 1
- Family law: the early effects of no fault divorce under the Divorce, Dissolution and Separation Act 2020
- Contract law: formation and liability when contracts are made or performed by automated systems
- Environmental law: the growth of climate litigation and the role of courts in holding governments to targets
Treat these as starting points. Each needs narrowing to a specific issue before it becomes a question you can answer.
Choosing your legal research methods
Your method is how you will answer the question, and your methodology section needs to justify it. Legal research methods fall into a few broad families, and many dissertations combine two.
| Method | What it does | Suits questions like |
|---|---|---|
| Doctrinal | Analyses legislation, case law and commentary to state and critique the law | Is the current test coherent? |
| Socio-legal | Examines how law works in practice, often with interviews or data | How do tribunals apply the rule in reality? |
| Comparative | Compares how different jurisdictions handle the same problem | What could England learn from another system? |
| Theoretical | Tests law against a theory, such as feminist or law and economics | What assumptions does the doctrine make? |
Doctrinal work is the most common choice for an LLB. Socio-legal research can be more original but needs ethics approval before you collect data, so build that time into your plan.
Structuring a law dissertation
Most follow a shape close to this, although a comparative or empirical project will adjust it:
- Abstract: the question, the method and your answer, in around 250 words
- Introduction: why the question matters, what you will argue, and how the chapters get there
- Legal context: the rules, the leading cases and the academic debate you are entering
- Analysis chapters: usually two or three, each dealing with one issue in your argument
- Reform or recommendations: where the question calls for them
- Conclusion: your answer, its limits and what it means
OSCOLA dissertations normally end with a table of cases, a table of legislation and a bibliography of secondary sources, rather than a single reference list. OurOSCOLA referencing guide covers the footnote and bibliography formats.
Writing analysis that earns marks
The difference between a 2:1 and a first is almost always the balance between description and argument. Explaining what a judgment said is necessary, but it is the starting point. The marks come from what you do with it: testing the reasoning, comparing it with other authorities, and saying whether it is right.
Engage with academic commentary as an argument you can agree or disagree with, not as a source of support. Address the strongest counterargument to your position directly, because a marker will think of it whether you do or not. Keep the law current too. Check Westlaw or Lexis for later cases and amendments shortly before you submit.
Read a few past law dissertation examples from your law school library or repository before you start. They show the expected depth and structure better than any description can, though they are models of format rather than of argument.
Planning the word count and timeline
Allocate words before you write. In a 10,000 word LLB dissertation, a typical split is around 1,000 words for the introduction, 2,000 for context, 5,500 across the analysis chapters and 1,000 for the conclusion. Our guide to dissertation word counts explains what usually counts towards the limit.
Write the analysis chapters first, while your reading is fresh, and the introduction last, once you know exactly what you have argued. Leave two weeks at the end for editing and checking footnotes, which always takes longer than planned.
Common problems and how to fix them
| Problem | Fix |
|---|---|
| Chapters that summarise cases in date order | Reorganise around the issues in your argument, using cases as evidence |
| A conclusion that only repeats the chapters | State your answer plainly and explain what follows from it |
| Footnotes carrying half the analysis | Move substantive points into the text, keeping footnotes for citation |
| Law that changed while you were writing | Search for developments in the final fortnight and update the relevant sections |
A research proposal is often the first assessed part of the process, and our guide towriting a research proposal explains what supervisors look for.
When the law dissertation is drafted, our dissertation editors check structure, clarity and consistency across every chapter, and review OSCOLA footnotes for accuracy, while the argument and the analysis stay entirely yours.
Last updated: 14 September 2026 · Written by the AssignWise editorial team ·Spotted something wrong?
Frequently asked questions
It varies by university. LLB dissertations are often around 10,000 to 12,000 words, and LLM dissertations commonly run to 15,000 to 20,000 words. Your module handbook sets the exact limit and says whether footnotes, the abstract and the bibliography count towards it.
Doctrinal research analyses legal rules through primary sources, such as legislation and case law, together with academic commentary. It asks what the law is, how it has developed, and whether it is coherent. Most LLB dissertations use it, often combined with another approach.
Not for purely doctrinal work based on published sources. If you plan to interview practitioners, survey the public or use any data about living people, you will need ethics approval before you collect anything, and that approval can take several weeks.
Law schools differ. Many exclude footnotes that contain only citations but count footnotes that carry discussion, while others count everything. Check the handbook early, because the answer changes how much analysis you can place in footnotes.
Yes, and recent cases often make good topics because commentary is still developing. Make sure there is enough existing law to analyse the case against, and watch for appeals that could change the position before you submit.
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