Judicial Precedent (AQA A-Level Law): Revision Notes
Judicial Precedent
This content will be assessed in Paper 1.
Introduction
Judicial precedent is a fundamental source of English law. This system, known as common law, has evolved through judicial decisions and established customs over centuries. Understanding how precedent operates is essential for analyzing how law develops through the courts.
Judicial precedent represents one of the most distinctive features of the English legal system. Mastering how it operates will help you understand how courts apply and develop law in practice.
The doctrine of judicial precedent
The doctrine of judicial precedent refers to the principle, operation and rules governing how past judicial decisions create law for future cases. When judges decide cases, their decisions become precedents – authoritative examples that guide how similar cases should be decided in the future.
The core principle is that courts must follow decisions made by courts above them in the hierarchy. This is known as stare decisis (meaning 'let the decision stand'). Where the legal issue in a previous case matches the issue in a current case, the court hearing the current case should apply the same legal principle. This approach promotes fairness by treating similar cases consistently and provides certainty in the law.
The Fundamental Principle of Stare Decisis
The principle of stare decisis is at the heart of judicial precedent. It requires that:
- Courts must follow decisions made by courts above them in the hierarchy
- Similar cases should be decided consistently
- Legal principles from earlier cases should be applied to current cases with matching legal issues
This creates stability and predictability in the legal system.
Types of precedent
Binding precedent
A binding precedent is a decision from a senior court that must be followed in future cases. For this system to function effectively, the courts are organized in a hierarchical structure, where higher courts bind lower courts.
The hierarchical system ensures consistency and predictability. When a higher court establishes a legal principle in its judgment, all lower courts must apply that same principle when facing similar cases. This creates a clear chain of authority within the judicial system.
Persuasive precedent
Persuasive precedent is a decision that does not have to be followed by later courts, but which a judge may choose to follow. While not binding, persuasive precedents carry considerable weight and judges will often consider them carefully.
Persuasive precedents may arise from several sources:
- Decisions from courts that do not bind, such as the Judicial Committee of the Privy Council
- Decisions from courts lower in the hierarchy
- Obiter dicta statements within judgments (discussed further below)
Hierarchy of the courts
The following table shows how the court hierarchy operates in relation to judicial precedent:
| Court | Bound by | Binds | Key cases | Notes |
|---|---|---|---|---|
| Judicial Committee of the Privy Council | No one, not even itself | All domestic courts of the Commonwealth, including England | Grant v Australian Knitting Mills (1936); The Wagon Mound (1961) | Regarded as persuasive precedent only in England, but very persuasive |
| Supreme Court | European Court of Justice on EU issues; Not itself | All other UK courts | R v Brown (1993); Donoghue v Stevenson (1932) | Has not been bound by its own decisions since Practice Statement 1966; can reopen appeals, e.g. Re Pinochet Ugarte (1999) |
| Court of Appeal (Civil Division) | Supreme Court; Itself with exceptions | All lower courts and itself | Broome v Cassell (1971); Miliangos v George Frank (Textiles) Ltd (1976); Young v Bristol Aeroplane Co Ltd (1944) | Tried to challenge being bound by Supreme Court – rejected; Has three exceptions when it need not follow its own decisions |
| Court of Appeal (Criminal Division) | Supreme Court; Itself | All lower courts; Itself | Prepared to be flexible and will not follow its previous decisions where doing so would cause injustice | |
| Queen's Bench Division of the High Court | Supreme Court; Court of Appeal; Itself | High Court generally; Lower courts; Itself | Follows very similar rules to the Court of Appeal (Criminal Division) in terms of binding itself | |
| Chancery and Family Divisions of the High Court | Supreme Court; Court of Appeal; Themselves | High Court generally; Lower courts; Themselves | Similar position to other High Court divisions | |
| High Court | Supreme Court; Court of Appeal; Divisional courts; Not itself | Lower courts; Not itself |
Why Some Courts Don't Create Precedents
The County Court, Crown Court and Magistrates' Courts do not create precedents because:
- There are far too many cases going through them
- They do not publish judgments that could be used as precedents
These lower courts apply precedents set by higher courts but do not establish binding precedents themselves.
Young v Bristol Aeroplane Co Ltd (1944) – exceptions for the Court of Appeal
The Three Exceptions: When the Court of Appeal Need Not Follow Itself
The Court of Appeal (Civil Division) need not follow its own previous decisions when:
- The previous decision was made per incuriam (in error)
- There are two conflicting previous decisions (cannot follow both)
- There is a later conflicting Supreme Court decision
These exceptions provide necessary flexibility while maintaining the general rule of self-binding precedent.
Practice Statement 1966
When the Supreme Court replaced the House of Lords in 2009, the Constitutional Reform Act 2005 transferred the House of Lords' powers to the Supreme Court.
The Practice Statement 1966 allows the Supreme Court to depart from its own previous decisions when it appears right to do so. In Austin v London Borough of Southwark (2010), the Supreme Court confirmed that this power had been transferred to it.
The Significance of the Practice Statement 1966
Practice Directions 3 and 4 of the Supreme Court state that the Practice Statement is part of the established jurisprudence relating to the conduct of appeals and has as much effect in the Supreme Court as it did before the Appellate Committee in the House of Lords.
Therefore, the Supreme Court does not have to follow its own previous decisions, but it must explain why if it chooses not to. This provides flexibility to correct previous errors or adapt the law to changing circumstances while maintaining stability and certainty.
Stare decisis
Stare decisis is the fundamental principle of precedent, meaning 'let the decision stand'. This principle requires that a decision in an earlier case will stand as guidance for all future cases with similar facts and legal issues.
When a court makes a decision, it issues a judgment. This judgment contains both the decision itself and a detailed explanation of the legal reasoning that led to that decision. Understanding the components of a judgment is crucial for applying precedent correctly.
Ratio decidendi
Ratio decidendi means 'the reason for the decision'. This is the part of the judgment that forms the binding precedent for future cases.
The ratio decidendi contains the legal principle or rule that the judge applied to reach their decision. All the points of law learned throughout substantive law topics come from the ratio decidendi of cases.
Example: Ratio Decidendi in Practice
In Tuberville v Savage (1669), the ratio decidendi established the principle that words can prevent an action from being an assault. This legal principle from the ratio decidendi has been applied in all subsequent assault cases where words accompany potentially threatening actions.
This demonstrates how the ratio decidendi creates binding precedent that guides future decisions.
Identifying the ratio decidendi can sometimes be challenging, particularly in cases with multiple judges who may emphasize different aspects of the law. However, it is this element that creates binding precedent.
Obiter dicta
Obiter dicta means 'other things said'. This comprises the rest of the judgment apart from the ratio decidendi.
Judges in future cases do not have to follow obiter dicta, but it can provide very useful guidance on how the law might apply in different circumstances. Obiter dicta often includes:
- Hypothetical scenarios
- Discussion of legal principles not directly applicable to the case
- Alternative reasoning
Example: Obiter Dicta Creating Persuasive Guidance
In Hill v Baxter (1958), the judge gave the example of being attacked by a swarm of bees. This hypothetical scenario was obiter dicta – not part of the binding decision.
However, this statement provides useful guidance for understanding the requirement of a voluntary act and the defense of automatism (an act done by the muscles without any control by the mind, such as a spasm, reflex action or convulsion).
This shows how obiter dicta, while not binding, can be highly persuasive and influential in developing legal understanding.
Law reporting
For the precedent system to function, there must be accurate records of judicial decisions. These records are called law reports and have existed since the thirteenth century.
The Critical Role of Law Reports
Law reports record the judgment word-for-word and are then published. The accuracy is overseen by independent lawyers, as these reports effectively underpin the whole principle of precedent – without them, there would be no record to follow.
This makes law reporting an essential foundation of the entire precedent system.
Citations
The codes seen at the end of case names are references for locating the report for each case. These codes are called citations. For example, Tuberville v Savage [1669] EWHC KB J25 – where EWHC indicates the High Court.
Law reports are published:
- Weekly in The Times newspaper
- Annually in leather-bound volumes
- Online for all High Court, Court of Appeal, and Supreme Court cases (and House of Lords cases from 1996-2009)
Operation of judicial precedent
When faced with a precedent set in an earlier case, judges have three main options for dealing with it:
Following
The judge applies the same legal principle to the current case. If the precedent comes from a court above or on the same level as the present court, the judge must normally follow it.
Example: Following a Precedent
Michael v Chief Constable of South Wales (2015) followed Hill v Chief Constable of West Yorkshire (1988), confirming that it is not fair, just and reasonable to impose a duty on the police to protect future victims of crime.
Here, the later court applied the same legal principle established in the earlier case, demonstrating how following precedent maintains consistency.
Overruling
The court in a later case states that the decision in an earlier case is wrong. Overruling may occur when:
- A higher court overrules a decision made in an earlier case by a lower court
- The Supreme Court uses the Practice Statement to overrule a past decision of its own
Example: Overruling a Precedent
R v Jogee (2016) overruled R v Powell and R v English (1999) on the use of the principle of joint enterprise in criminal law.
This demonstrates the Supreme Court using its power to correct what it determined was an incorrect legal principle established in an earlier case.
Distinguishing
A judge avoids following a precedent by finding that the material facts of the current case are sufficiently different from the case setting the precedent. If a distinction can be drawn between the two cases, the judge is not bound by the previous case.
Examples: Distinguishing Precedents
Example 1: Merritt v Merritt (1971) distinguished Balfour v Balfour (1919) in relation to the binding nature of financial arrangements between spouses. The key difference was that in Merritt, the couple had separated, whereas in Balfour, they were still living together.
Example 2: White Lion Hotel v James (2021) distinguished Geary v JD Wetherspoon (2011) because in White Lion the window sash was broken, whereas in Geary the banister was not. This factual difference was sufficient to avoid following the precedent.
These examples show how judges can identify material factual differences to avoid applying precedents that would be inappropriate to the current case.
Advantages and disadvantages of judicial precedent
Advantages
Certainty: The law becomes predictable, which promotes alternative dispute resolution (ADR) in civil cases. Parties can assess the likely outcome of their case and may choose to settle rather than proceed to court.
Consistency: Like cases are decided alike, promoting a sense of justice and fairness in the legal system.
Fairness: The certainty and consistency allow parties involved in cases to see how the decision was arrived at and that it is fair in the circumstances.
Precision: The exact details of the law are known by all parties, reducing ambiguity and confusion.
Flexibility: Bad precedents can be avoided using mechanisms such as the Practice Statement. For example, Young v Bristol Aeroplane Co Ltd (1944) established exceptions allowing the Court of Appeal to depart from its own decisions in certain circumstances.
Time-saving: The predictability makes ADR more likely, thus saving parties and the courts time and money.
Development of statutory law: Details can be added to statutory provisions. For example, R v Clinton (2012) clarified the position on sexual infidelity in relation to loss of control.
Evolution: The law can evolve to meet changing social attitudes, as demonstrated in R v R (1991), which established that rape within marriage is an offence.
The Balance of Judicial Precedent
The advantages of judicial precedent demonstrate how it creates a stable, predictable legal system that promotes fairness and consistency. However, these strengths must be balanced against the potential disadvantages that can arise from strict adherence to precedent.
Disadvantages
Rigidity: Binding decisions can restrict decisions made in the interests of individual justice. Courts may feel constrained to apply a precedent even where it produces an unjust result in a particular case.
Complexity: Judgments are very long and difficult to read, and it is not always easy to identify the ratio decidendi and obiter dicta. This can make the law less accessible.
Illogical distinctions: Some cases are distinguished on very minor or controversial points. This could be argued in R v Brown (1993) and R v Wilson (1996), where the defense of consent was allowed in Wilson but not in Brown, arguably on the basis of sexuality.
Slowness of growth: The development of precedent depends on accidents of litigation – waiting for a similar case to come along in order to develop the law further. This can leave gaps in the law for extended periods.
Difficulty correcting bad precedents: A bad precedent needs another case or an Act of Parliament to correct it. For example, Smith (1961) required the Criminal Justice Act 1967 to reset intention as a subjective test.
Democratic Concerns About Judicial Law-Making
Unelected judges are making and developing key legal principles. Lord Mance in Robinson v Chief Constable of West Yorkshire (2018) stated:
The courts are not a Law Commission but, in recognising the existence of any generalised duty in particular circumstances, they are making policy choices.
This raises important questions about judicial law-making in a democratic society. Should unelected judges have the power to create and develop law, or should this be the exclusive role of Parliament?
Key cases for judicial precedent
| Case | Significance |
|---|---|
| Grant v Australian Knitting Mills (1936) | Demonstrates persuasive nature of Judicial Committee of the Privy Council decisions |
| The Wagon Mound (1961) | Demonstrates persuasive nature of Judicial Committee of the Privy Council decisions |
| R v Brown (1993) | House of Lords/Supreme Court precedent; also used for distinguishing with R v Wilson (1996) |
| Donoghue v Stevenson (1932) | House of Lords/Supreme Court precedent creating the test for duty of care; has never been overruled but has been restricted |
| Young v Bristol Aeroplane Co Ltd (1944) | Gave the exceptions to the rule that the Court of Appeal must follow itself |
| Conway v Rimmer (1968) | First use of Practice Statement 1966, avoided following Duncan v Cammell Laird (1942) |
| R v Shivpuri (1986) | First use of Practice Statement 1966 in a criminal case, avoided following Anderton v Ryan (1985) |
| Herrington v British Railways Board (1972) | Use of Practice Statement 1966 to overrule Addie v Dumbreck and establish a duty to trespassers |
| Pepper v Hart (1993) | Use of Practice Statement 1966 to allow the use of Hansard in statutory interpretation |
| Knuller v DPP (1973) | House of Lords deciding not to use the Practice Statement 1966 |
| R v G and R (2003) | House of Lords establishing the current definition of recklessness, overruling MPC v Caldwell (1982) |
| Michael v Chief Constable of South Wales (2015) | Followed Hill v Chief Constable of West Yorkshire (1988) regarding police duty to protect future victims |
| R v Jogee (2016) | Overruled R v Powell and R v English (1999) on joint enterprise in criminal law |
| Merritt v Merritt (1971) | Distinguished Balfour v Balfour (1919) regarding binding nature of financial arrangements between spouses |
Exam guidance
Tips for Exam Success
Using cases effectively: All cases studied throughout your course are precedents. Use as many as you can to illustrate your points in exam answers. Remember that the legal principle is more important than the detailed facts of the case.
Understanding ratio decidendi: You may be asked why the ratio decidendi of a case is sometimes difficult to establish. Consider factors such as multiple judgments, complex legal reasoning, and evolving interpretations over time.
Evaluation: When evaluating judicial precedent, consider whether justice could prevail without a system of precedent. Link your evaluation back to the doctrine of judicial precedent and its fundamental principles.
Paper 1 assessment: This content is assessed in Paper 1, so ensure you can apply these principles in both scenario-based questions and essay questions about the operation and effectiveness of judicial precedent.
Remember!
Key Points to Remember:
- Judicial precedent is the system where past judicial decisions create law for future judges to follow
- There are two types of precedent: binding (must be followed) and persuasive (may be followed)
- Stare decisis means courts must follow decisions of courts above them in the hierarchy
- The ratio decidendi is the binding part of a judgment; obiter dicta is persuasive only
- The Practice Statement 1966 allows the Supreme Court to depart from its own previous decisions
- Judges can follow, overrule, or distinguish precedents
- The system provides certainty and consistency but can be rigid and complex
- Understanding the hierarchy of courts is essential for knowing which courts bind which