
The doctrine of precedent, also known as stare decisis, is the basis of the common law judicial decision-making process. It is the mechanism by which precedents in law are established and followed by judges in later comparable cases. In a common law system, judges are obliged to make their rulings as consistent as reasonably possible with previous judicial decisions on the same subject. However, the doctrine of precedent does not mean that judges make law under a system of binding precedent. Instead, their role is to uphold the laws made by parliament and apply them in accordance with the cases presented to them. This article will explore the role of judges in the creation and application of binding precedent within the common law system.
| Characteristics | Values |
|---|---|
| Nature of common law | Body of law created by judges and similar quasi-judicial tribunals by virtue of being stated in written opinions |
| Binding precedent | A court must abide by it in its adjudication of a case; a lower court is bound by the decision of a higher court in the same jurisdiction |
| Role of judges | To uphold the laws which are made by the parliament; to apply the law in accordance with the cases |
| Doctrine of precedent | The principle that decisions in current cases should be based on previous rulings |
| Ratio decidendi | The rule of law used by the judge or judges in deciding the legal problem raised by the facts of the case |
| Obiter dictum | Statements that are not part of the binding precedent but can be considered in later cases |
| Overruling | A court may overturn its own precedent but should be guided by principles from superior, lateral, and inferior courts |
| Leapfrog appeals | Enabled by Sections 12 to 19 of The Administration of Justice Act 1969 when a point of law of general public importance is involved |
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What You'll Learn

Judges' role is to uphold laws, not make them
Judges play a crucial role in interpreting and applying the law, but their primary function is to uphold the laws created by the legislature or parliament, not to make new laws. In a system of binding precedent, judges follow established legal principles and precedents set by higher courts in their rulings, ensuring consistency and predictability in the law.
The doctrine of precedent, also known as stare decisis, is a fundamental principle in common law systems. It dictates that judges should base their decisions on previous rulings in similar cases. This ensures that the law remains stable and predictable, providing guidance to lower courts on how to handle similar situations.
When a judge delivers a judgment, they are not merely stating the outcome of a case but also providing the legal reasoning behind it. This reasoning is crucial for establishing precedents that will guide future cases. The ratio decidendi, or the legal principle underlying the decision, sets a binding precedent that lower courts must follow in subsequent cases with similar facts.
However, it is important to note that judges do have some flexibility in interpreting and applying the law. They may distinguish their cases from previous rulings by highlighting differences in the material facts, allowing them to deviate from strict adherence to precedent. Additionally, judges can overrule past decisions if there are strong reasons to do so, such as when a precedent causes injustice or impedes the development of the law.
While judges create common law or judge-made law through their written opinions and rulings, this does not mean they are making new laws from scratch. Instead, they are interpreting and applying existing laws to specific cases, filling in gaps, and providing clarity through their decisions. The role of judges is, therefore, to uphold the laws created by the legislature and ensure they are applied fairly and consistently through the use of binding precedent.
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Common law is a body of law created by judges
In law, common law, also known as judicial precedent, judge-made law, or case law, is the body of law created by judges and similar quasi-judicial tribunals. It arises from written opinions and previous rulings, which are cited as precedents. The doctrine of precedent, also known as stare decisis, is the basis of the common law judicial decision-making process. It involves applying precedents to later cases with similar or comparable factual backgrounds.
In a common law system, judges are obliged to make their rulings as consistent as reasonably possible with previous judicial decisions on the same subject. This promotes certainty in the law. However, judges do have some mechanisms to alter or avoid precedents, such as distinguishing the previous case as having different material facts, thus making it non-binding on the current case.
The ratio decidendi, or the rule of law used by the judge in deciding the legal problem, is an important concept in understanding the precedent set by a case. While it is not the actual decision, such as "guilty" or "the defendant is liable to pay compensation", it is the underlying rule or principle that forms the basis of the decision. Identifying the ratio decidendi can be complex, and judges do not always clearly separate and highlight it from the rest of their judgment, leading to uncertainty in determining the exact precedent.
While judges play a crucial role in creating and applying common law, their primary role is to uphold the laws made by parliament. They must apply and interpret these laws in accordance with previous cases and precedents, ensuring consistency and predictability in the legal system.
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Binding precedent is a must for lower courts
The ratio decidendi, or the reason for the decision, forms the basis of binding precedent. It is the rule of law used by the judge to decide the legal problem presented by the facts of the case. While the ratio decidendi is an essential part of the judgment, it is not always clearly separated from the rest of the judgment, which can lead to uncertainty in determining its precise scope. This is where the importance of binding precedent comes into play, as it provides a clear framework for lower courts to follow in similar cases.
In the example of the dog left in the car, the ratio decidendi of the case was that the owners were not liable to pay compensation for the passer-by's injury. This sets a precedent for future cases with similar facts, where lower courts would be expected to follow the same rule of law and reach a consistent decision. While judges have some discretion in interpreting and applying precedents, the binding nature of these decisions ensures a level of uniformity in the law.
Binding precedent also allows for the evolution of the law. While lower courts must follow the precedents set by higher courts, they can also contribute to the development of the law by distinguishing or altering precedents based on the specific facts and circumstances of a case. This balance between consistency and flexibility ensures that the law can adapt to changing social norms and values while maintaining stability and predictability.
In conclusion, binding precedent is essential for lower courts to ensure consistency, predictability, and uniformity in the law. It provides a framework for judges to follow while allowing for the evolution of legal principles through the distinction and alteration of precedents. By adhering to binding precedent, lower courts contribute to a fair and stable legal system that adapts to the changing needs of society.
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Doctrine of precedent brings certainty to law
The doctrine of precedent, also known as stare decisis, is a fundamental principle in common law systems. It dictates that past judicial decisions serve as case law to guide future rulings, thereby promoting consistency and predictability in the law. This doctrine brings certainty to the law in several ways.
Firstly, stare decisis requires judges to follow existing precedents, preventing arbitrary decision-making and ensuring legal stability. This consistency in judicial decision-making promotes certainty for individuals and organisations, who can reasonably predict how a court will rule on a similar issue based on past judgments. For example, in the United States, the Supreme Court's precedent for insider trading in 2016 set a binding precedent for future cases involving similar issues.
Secondly, the doctrine of precedent helps to avoid unnecessary litigation by preventing courts from continually deciding the same legal question or issue. This saves time and resources for all parties involved. For instance, in the case of Salman v. the United States, the precedent set by the Supreme Court regarding insider trading was followed, providing clarity and certainty for future cases involving similar circumstances.
Thirdly, the doctrine of precedent allows for the evolution of the law to reflect changing social, cultural, and economic conditions. While stare decisis promotes consistency, it is not static and allows for logical variations in the application of the law. This flexibility ensures that the law can adapt to societal changes while still providing a predictable framework for decision-making.
Furthermore, the doctrine of precedent establishes a hierarchy of courts, with higher courts' decisions generally binding on lower courts. This hierarchical structure provides certainty and consistency in the application of the law across different court levels. Lower courts typically defer to the precedent set by higher courts to maintain uniformity and predictability in legal rulings.
However, it is important to note that the doctrine of precedent does not always provide absolute certainty. In some instances, judges may interpret and apply precedents differently, leading to varying outcomes in similar cases. Additionally, certain mechanisms allow judges to alter or avoid precedents, such as finding distinctions between cases or deeming a precedent unjust or outdated. Nonetheless, the doctrine of precedent remains a critical tool for ensuring certainty and consistency in the law, guiding judicial decision-making and providing a framework for resolving legal disputes.
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Judges can overturn previous decisions
In a system of binding precedent, judges can indeed overturn previous decisions. This is a mechanism through which judges can alter or avoid precedents. A court decision or precedent is overturned when a judiciary rejects the result of a prior court proceeding.
In the United States, the U.S. Supreme Court is the highest authority regarding precedent and decision-making within its jurisdiction. Supreme courts can overturn previous decisions and precedents. Justices making such decisions often argue that a previous doctrine was unworkable in the context of a case being decided, that significant social changes have occurred since a precedent was established, or that a more recent precedent violated an earlier precedent. For example, in 1937, the West Coast Hotel Company v. Parrish case overturned a decision from the previous year, stating that the establishment of minimum wages for women was constitutional.
State supreme courts also set precedents and resolve conflicting interpretations of state laws. When a court rules against a party to a lawsuit, that party may choose to appeal the decision. The appeals process typically involves filing a notice of appeal with a lower court, indicating the intention to take the matter to a higher court.
Appellate courts generally review whether law and precedent were properly interpreted and applied in cases. If a higher court finds that a lower court did not properly interpret or apply a law or constitutional provision, it may overturn the lower court's decision.
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Frequently asked questions
The doctrine of precedent is the basis of the common law judicial decision-making process. It is how precedents in law are established, followed, and replaced.
In a system of binding precedent, a judge's role is to uphold the laws made by the parliament. They must apply these laws in accordance with previous cases.
Judges use precedent as a guideline to follow. They are obliged to make their rulings as consistent as reasonably possible with previous judicial decisions on the same subject.
Yes, a court may overturn its own precedent, but only if a strong reason exists to do so. For example, a previous decision is more likely to be overruled if it impedes the development of the law or causes uncertainty.
The ratio decidendi is the rule of law used by the judge in deciding the legal problem raised by the facts of the case. It is not the actual decision, but the rule that underlies the decision.




























