Law · Year 12 · Law Making · 2.º Período

Judicial Precedent

An exploration of the doctrine of judicial precedent (stare decisis), the hierarchy of the courts in precedent, and how judges can avoid following past decisions.

TL;DR:Judicial precedent, or stare decisis, is the principle that judges should follow the decisions made in previous, similar cases. This topic explores the hierarchy of the courts and how it dictates which decisions are binding. Students learn to distinguish between the ratio decidendi (the legal reason for the decision) and obiter dicta (other things said 'by the way'), which are only persuasive.

• National Curriculum Attainment Targets
• AQA A-Level Law 3.1.2.4 Judicial precedent
• OCR H415/01 2.4 Judicial precedent

About This Topic

Judicial precedent, or stare decisis, is the principle that judges should follow the decisions made in previous, similar cases. This topic explores the hierarchy of the courts and how it dictates which decisions are binding. Students learn to distinguish between the ratio decidendi (the legal reason for the decision) and obiter dicta (other things said 'by the way'), which are only persuasive.

The unit also covers the mechanisms judges use to develop the law or avoid an awkward precedent, such as distinguishing, overruling, and departing. A key focus is the Practice Statement 1966, which allowed the House of Lords (now the Supreme Court) to depart from its own previous decisions when it is 'right to do so.' This topic is fundamental for understanding how the common law evolves while maintaining consistency and predictability.

This topic comes alive when students can physically model the patterns of court hierarchy and the flow of binding authority through collaborative mapping.

Key Questions

1. What is the difference between ratio decidendi and obiter dicta?
2. How does the Practice Statement 1966 operate?
3. In what circumstances can the Court of Appeal depart from its own decisions?

Watch Out for These Misconceptions

Common Misconception

Every part of a judge's written decision is binding law.

What to Teach Instead

Only the ratio decidendi is binding. Using a 'sifting' activity where students separate the facts, the law, and the 'by the way' comments helps them identify the actual precedent.

Common Misconception

The Court of Appeal can always ignore its own past decisions.

What to Teach Instead

The Court of Appeal is generally bound by its own decisions, with very limited exceptions set out in Young v Bristol Aeroplane. A flow-chart exercise helps students memorize these specific exceptions.

Active Learning Ideas

Inquiry Circle

Ratio vs Obiter

Provide students with a simplified version of a famous judgment (e.g., Donoghue v Stevenson). Groups must highlight the binding ratio in one color and the persuasive obiter in another, justifying their choices to the class.

35 min·Small Groups

Simulation Game

The Practice Statement in Action

Set up a Supreme Court panel. Students are presented with a clear but outdated precedent (e.g., on marital rape or child trespassers). They must argue whether to follow the precedent for the sake of certainty or use the 1966 Practice Statement to change the law.

50 min·Small Groups

Think-Pair-Share

Distinguishing Facts

Give students two very similar cases (e.g., Merritt v Merritt and Balfour v Balfour). In pairs, they must find the 'material difference' in the facts that allowed the judge in the second case to avoid following the first.

20 min·Pairs

Frequently Asked Questions

What is the difference between binding and persuasive precedent?

A binding precedent must be followed by lower courts in the same hierarchy if the facts are similar. A persuasive precedent (such as a decision from a lower court, a different country, or obiter dicta) does not have to be followed, but a judge may choose to use it as a guide.

How can a judge avoid following a precedent?

A judge can 'distinguish' the case by finding that the material facts are different. A higher court can 'overrule' a decision made by a lower court in a previous case. Finally, a court can 'reverse' the decision of a lower court in the same case on appeal.

What was the significance of the Practice Statement 1966?

Before 1966, the House of Lords was bound by its own previous decisions (London Tramways). The Practice Statement allowed them to depart from their own precedents to avoid injustice or to allow the law to develop in line with changing social conditions.

How can active learning help students understand judicial precedent?

Active learning helps students see precedent as a dynamic process rather than a static list of rules. By 'distinguishing' cases in a workshop setting, students learn to spot the subtle factual differences that judges use to evolve the law. This develops the critical thinking skills needed to predict legal outcomes.