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Judicial Precedent (Case Law)

Core Principle

What is Stare Decisis?

Judicial precedent, also called case law or stare decisis, is a fundamental principle whereby past judicial decisions are authoritative in deciding current and future cases. It means courts follow the legal principles laid down in earlier cases with similar facts, ensuring consistency, predictability, and fairness in the law.

Key Legal Terms

Understanding the structure of a judgment is critical to determining its binding authority.

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Ratio Decidendi

The binding reason or principle upon which a judge’s decision is based. This is authoritative.
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Obiter Dicta

Comments or observations made by a judge not essential to the decision. Persuasive but not binding.
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Original Precedent

Created when a case raises a new point of law with no prior decisions.
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Binding Precedent

Must be followed by lower courts in subsequent cases with similar facts.

Hierarchy and Binding Effect

In the UK, the binding effect of precedent depends entirely on the relative position of the court within the judicial hierarchy.

1

Supreme Court

Decisions bind all lower courts.
2

Court of Appeal

Decisions bind lower courts.
3

High Court

Decisions bind lower courts in their own divisions and below.

Evaluating Case Law

✅
Advantages
Certainty: Parties can predict legal outcomes based on established rules. Consistency and Fairness: Similar cases treated alike. Efficiency: Judges can rely on existing frameworks.
❌
Disadvantages
Rigidity: Courts may be bound to apply out-of-date precedents, causing injustice. Complexity: The volume of case law can be overwhelming. Slow Development: Legal change relies on cases appearing in courts, so reform can be delayed.

Mechanisms for Legal Development

Courts use specific doctrines to avoid following precedent when it is outdated, wrong, or factually inappropriate.

D

Distinguishing

Courts find material factual differences from the previous case to avoid binding precedent.
O

Overruling

A higher court can overturn a precedent set by a lower or same-level court.
P

Practice Statement (1966)

The House of Lords (Supreme Court) introduced a rule allowing it to depart from its previous decisions to avoid injustice (used sparingly).

Statute vs Case Law

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Wait, so does statute law completely override judicial precedent?
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Statutes take priority! Precedent applies mainly where statutes are ambiguous or silent. Courts interpret statutes and develop common law principles through precedent, creating a complementary relationship.
Judicial Precedent Deck
Term
Judicial Precedent

What is judicial precedent?

Answer
Definition

A principle where courts follow past judicial decisions in similar cases.

Term
Ratio Decidendi

What is ratio decidendi?

Answer
Definition

The legal reason or principle upon which a court’s decision is based; it is binding.

Term
Obiter Dicta

What is obiter dicta?

Answer
Definition

Judges' comments not essential to the decision; persuasive but not binding.

Term
Binding Courts

Which courts’ decisions are binding on all lower courts in the UK?

Answer
Answer

The Supreme Court (formerly House of Lords).

Term
Binding Precedent

What is binding precedent?

Answer
Definition

Decisions that must be followed by lower courts in future similar cases.

Term
Persuasive Precedent

What is persuasive precedent?

Answer
Definition

Decisions that may influence but do not bind courts, such as from lower courts or foreign courts.

Term
Original Precedent

What is original precedent?

Answer
Definition

A new legal principle set when no previous case law exists on a point.

Term
Advantage of Judicial Precedent

Name one advantage of judicial precedent.

Answer
Advantage

Certainty, as outcomes can be predicted based on established rules.

Term
Distinguishing

What is distinguishing?

Answer
Definition

Avoiding precedent by finding material factual differences from a previous case.

Term
Practice Statement (1966)

What is the Practice Statement (1966)?

Answer
Definition

A rule allowing the House of Lords to depart from previous decisions to avoid injustice.

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⚖️ Judicial Precedent Quiz

1. What does the principle of stare decisis mean?

Stare decisis requires courts to follow established rulings to ensure consistency.

2. Which part of a judgment is binding precedent?

The ratio decidendi is the core legal reasoning binding on future cases.

3. Which of the following is NOT a way courts can avoid following precedent?

Courts cannot ignore statutes; they must follow legislation when applicable.

4. The Practice Statement (1966) allows which court to overrule its own previous decisions?

The Practice Statement permits the Supreme Court to depart from past decisions to avoid injustice.

5. Which is an advantage of judicial precedent?

Precedents allow parties to anticipate legal outcomes based on prior rulings.

📊 Results

  • Notes and Quiz
  • Law
  • A Level
  • English Legal System
  • AQA