How to Write a Legal Case Note

Case notes test whether you can distil a judgment and evaluate its significance, facts, ratio, reasoning and critical commentary done to standard.

A case note is a short, structured analysis of a single judgment. It is not a summary, it is an argument about what the case decided, why, and whether the reasoning holds. Law schools and journals use it to test the core skill of reading a judgment critically.

Facts (Kept Brief)

State only the legally material facts, those that affected the outcome. A common beginner error is a long narrative. The marker wants the facts that made the legal difference, in a few sentences.

Procedural History

Note briefly how the case reached this court and what the lower courts held. This frames what the current judgment was actually deciding.

Issue and Holding

State the precise legal question and the court's answer. Distinguish the ratio decidendi, the binding legal principle the decision turned on, from obiter dicta, the persuasive-but-not-binding observations. Correctly identifying the ratio is the intellectual core of a case note.

Reasoning

Explain how the court got from the rule to the result. Which authorities did it rely on, distinguish or overrule? Where the court split, engage with the dissent, dissents often expose the weak point in the majority's logic and give you material for evaluation.

Critical Commentary, Where the Marks Are

This is what separates a case note from a summary. Evaluate: Is the reasoning coherent? Does it sit consistently with prior authority? What are the practical consequences? Is the decision likely to be followed, distinguished, or eventually overruled? Bring in academic commentary and later cases that have treated this one.

The majority's reliance on [authority] is questionable because that case concerned [distinction]. As [academic] argues, this extends the principle beyond its original justification, creating uncertainty for [context].

Common Errors

Summarising the judgment instead of evaluating it.
Confusing ratio with obiter.
Reciting all the facts rather than the material ones.
Offering no independent critical view.

Checklist

Are only material facts included?
Have I correctly identified the ratio?
Does the commentary evaluate, not just describe?
Have I engaged with dissents and later treatment?
Have I checked whether the case remains good law?
Is my citation in the neutral-citation form where one exists?

A Working Structure

Case notes vary in length from 1,000 to 4,000 words, but the proportions hold. The commentary is the part that is actually assessed, and it is the part students most often shortchange.

Section	Share	Job
Citation and court	Minimal	Full citation, court, and the judges
Material facts	10 to 15 per cent	Only the facts the decision turned on
Procedural history	5 per cent	How the case reached this court, and what was held below
Issue	5 per cent	The legal question before the court
Decision and reasoning	25 to 30 per cent	What was held, and the reasoning that produced it
Commentary	40 to 50 per cent	Your evaluation. The assessed element

Material Facts, and How to Spot Them

A material fact is one that, if changed, might change the outcome. That test does most of the work. The claimant's occupation is usually immaterial, unless the duty owed depended on it. The date is immaterial, unless a limitation period or a statutory commencement turned on it.

Test each fact by asking whether the judgment relies on it. If the reasoning never mentions it, it is background. A case note that opens with three paragraphs of narrative has usually spent a quarter of its words before reaching anything assessable.

Ratio and Obiter, Practically

The ratio decidendi is the principle necessary to the decision on these facts. Obiter dicta are observations not necessary to the outcome. Only the ratio binds, though obiter from a senior court can be highly persuasive.

Identifying the ratio is genuinely difficult, and honest disagreement is common. Two practical tests help. First, would the outcome have been the same without this proposition? If yes, it is obiter. Second, at what level of generality did the court state it? A narrow ratio confines the case to similar facts, a wide one extends it, and how later courts read it often settles the question.

Where there are multiple judgments, the difficulty compounds. Look for the reasoning that commands a majority. Where the majority agree on the outcome but differ in reasoning, say so, because that is a substantive feature of the case rather than an inconvenience.

Dissents Are Analytical Gold

A dissent tells you exactly where the case was contestable, because a senior judge has already written the strongest counter-argument for you. Engaging with it demonstrates that you understand the decision as a choice rather than an inevitability.

Note too that dissents sometimes become the law later. Tracing whether a dissenting position has since gained ground is one of the more sophisticated moves available in a case note.

What Commentary Should Actually Do

"The decision is correct" is not commentary. Useful evaluation operates on identifiable dimensions.

Dimension	Question to ask
Doctrinal coherence	Does it fit the existing authority, or does it depart from it?
Reasoning quality	Is the logic sound, and are the steps actually made?
Practical consequence	What changes for litigants, practitioners or regulators?
Policy	Does it serve the purpose the area of law pursues?
Certainty	Does it clarify the law or add ambiguity?
Scope	How far does it extend, and what does it leave open?

You do not need all six. Two or three, pursued properly and supported by academic commentary, produce a far stronger note than a survey of all of them.

Checking the Case Is Still Good Law

A case note on a decision that has since been overruled, distinguished into irrelevance or reversed on appeal is a serious error, and it is entirely avoidable. Check the subsequent treatment before you write, using the citator in your library database, and check whether legislation has since intervened.

Where the case has been applied, distinguished or doubted since, that history is often the most interesting material available, because it shows how the profession actually received the decision.

Common Mistakes and Fixes

Mistake	Fix
Half the note is facts	Cut to material facts only. Aim for a short paragraph
Summary with no evaluation	Commentary should be the largest section
Ratio confused with obiter	Apply the necessity test, and note where identification is contested
Dissent ignored	Engage with it. It is the ready-made counter-argument
No academic commentary cited	Find the case comments in the journals. Examiners expect engagement
Subsequent treatment unchecked	Run the case through a citator before writing
Citation format inconsistent	Follow OSCOLA or your local standard throughout

Where Ethical Support Fits

Law librarians will show you how to use a citator and trace subsequent treatment, and that is exactly what they are there for. Discussing your reading of the ratio with a tutor or a study group is ordinary legal study, since identifying it is a skill built through argument.

What stays yours is the evaluation. The commentary is your assessment of the decision, and it is the only part of the note that could not be produced by summarising the judgment.

Frequently Asked Questions

How long should a case note be?

Follow the brief. Student notes commonly run 1,500 to 2,500 words, and journal case comments are often shorter and denser.

Can I disagree with the court?

Yes, and reasoned disagreement is often what distinguishes a strong note. Argue it from authority and principle rather than from preference.

Do I need to read the whole judgment?

Yes. Headnotes are prepared by editors and are not authority. They also flatten differences between judgments, which is often exactly what you need to notice.

What if there are several separate judgments?

Identify where the majority agree and where their reasoning diverges. Divergent reasoning within a majority is a substantive point worth making.

Should I cite academic commentary?

Yes, where it exists. Case comments in the journals show how the decision was received, and engaging with them demonstrates research beyond the judgment.

What citation format should I use?

OSCOLA in most of the United Kingdom and Ireland, AGLC in Australia, Bluebook in the United States. Use the neutral citation where one exists, then a report citation.

How do I write about a case that is still under appeal?

Say so explicitly and date your analysis. Note which points are most likely to be revisited on appeal, since that is itself a useful assessment of where the reasoning is vulnerable. A note that acknowledges its own provisionality reads as careful rather than incomplete.

Your Next Step Today

Count the words in your facts section against your commentary section. If facts exceed commentary, cut the facts to those the judgment actually relies on, and spend the recovered words on evaluation. That is where the marks are.

Trusted Sources

Find Case Law, The National Archives, official free access to UK judgments. Accessed 11 August 2026.
BAILII, British and Irish Legal Information Institute. Accessed 11 August 2026.
The Supreme Court of the United Kingdom, judgments and press summaries. Accessed 11 August 2026.
Courts and Tribunals Judiciary, judgments and guidance. Accessed 11 August 2026.
University of Oxford Faculty of Law, OSCOLA. Accessed 11 August 2026.

This is general study guidance, not legal advice. Citation standards and court hierarchies differ by jurisdiction, so follow your department's requirements.