Cecily Zamora
Case law is a crucial component of the legal system, providing guidance, consistency, and precedent for legal interpretations and rulings. It is a collection of reported cases that form the body of law within a given jurisdiction, based on judicial opinions and decisions rather than law based on constitutions, statutes, or regulations. Case law uses the detailed facts of a legal case that has been resolved by courts or similar tribunals, and these past decisions are referred to as case law or precedent. In common law systems, courts follow the doctrine of stare decisis, a Latin phrase meaning let the decision stand, by which most courts are bound by their own previous decisions in similar cases. This means that all lower courts should make decisions consistent with the previous decisions of higher courts, promoting fairness and stability throughout the legal system.
| Characteristics | Values |
|---|---|
| Basis | Judicial decisions from previous cases |
| Type of law | Common law |
| Binding | Binding on lower courts |
| Deviating from precedent | Only if there is a compelling reason |
| Setting precedent | Sets a legal precedent that other courts are required to follow |
| Jurisdiction | Varies from one jurisdiction to another |
| Influence | Influences future judicial decisions |
| Shaping the law | Shapes the law as we know it |
| Consistency | Ensures consistency in court rulings |
| Guidance | Provides clarity and guidance to legal professionals |
| Interpretation | Helps in interpreting and applying existing laws to specific situations |
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What You'll Learn
Case law and common law
Case law is a key component of the legal system. It is a law that is established following a decision made by a judge or a panel of judges. Case law is developed by interpreting and applying existing laws to a specific situation and clarifying them when necessary. This process sets a legal precedent that other courts are required to follow, guiding future rulings and interpretations of a particular law. Case law plays a significant role in shaping the legal system and ensures it evolves when necessary. It provides clarity and guidance to legal professionals on how laws are interpreted and applied in real-life situations.
Case law is used interchangeably with common law. Common law is case law that creates law. It is used when there is no statutory law governing most of the relevant issues. Common law is also called judge-made law and is used in areas such as torts and contracts. Common law courts generally explain in detail the legal rationale behind their decisions, with citations of both legislation and previous relevant judgments, and often interpret the wider legal principles. The analysis is called ratio decidendi and constitutes a precedent binding on other courts.
Common law systems follow the doctrine of stare decisis, by which most courts are bound by their own previous decisions in similar cases. According to stare decisis, all lower courts should make decisions consistent with the previous decisions of higher courts. For example, in England, the High Court and the Court of Appeals are each bound by their own previous decisions. However, the Supreme Court of the United Kingdom can deviate from its earlier decisions, although in practice, it rarely does.
Some legal systems, such as Scots Law in Scotland and types of civil law jurisdictions in Quebec and Louisiana, do not fit neatly into the dual common-civil law system classifications. These systems may have been influenced by the Anglo-American common law tradition, but their substantive law is rooted in the civil law tradition. These types of legal systems are sometimes referred to as mixed systems of law.
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Precedent and stare decisis
Case law is a law that is based on precedents, or the judicial decisions from previous cases, rather than law based on constitutions, statutes, or regulations. Case law uses the detailed facts of a legal case that have been resolved by courts or similar tribunals. These past decisions are called "case law" or precedent.
Stare decisis, a Latin phrase meaning "let the decision stand", is the principle by which judges are bound to such past decisions, drawing on established judicial authority to formulate their positions. These judicial interpretations are distinguished from statutory law, which are codes enacted by legislative bodies, and regulatory law, which are established by executive agencies based on statutes. In some jurisdictions, case law can be applied to ongoing adjudication, for example, in criminal proceedings or family law.
The doctrine of stare decisis directs courts to adhere to previous judgments or judgments of higher courts or tribunals as they have persuasive and binding authority while resolving a case with allegedly comparable facts. This promotes fairness and stability throughout common law and the legal system. It also lessens the need for subsequent litigation and saves the time and energy of the judiciary by preventing it from continually deciding on the same legal question or issue if it has already been decided in another case.
There are horizontal and vertical components to the stare decisis concept. In horizontal stare decisis, a court adheres to its own precedent. For example, if the Seventh Circuit Court of Appeals adheres to the ruling of a previous Seventh Circuit Court of Appeals case, that would be horizontal stare decisis. Vertical stare decisis obligates lower courts to adhere strictly to rulings made by higher or appellate courts within the same jurisdiction as they have persuasive authority. For example, an appellate court must abide by the decisions made by the U.S. Supreme Court, as it is the federal court of last resort with binding authority.
While stare decisis is a foundational concept in the American legal system, there are nuances and limits to how it is applied. For example, judges may offer reasons or legal nuances to avoid following precedential decisions or to outright overturn prior rulings. This may occur when judges believe that developments or trends in legal reasoning render the precedent unhelpful, or when a prior decision is ""unworkable or badly reasoned", particularly in constitutional cases.
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Judicial decisions
Case law is based on precedents, which are judicial decisions from previous cases, rather than law based on constitutions, statutes, or regulations. Case law uses the detailed facts of a legal case that has been resolved by courts or similar tribunals. These past decisions are called "case law" or precedent. Stare decisis, a Latin phrase meaning "let the decision stand", is the principle by which judges are bound to such past decisions, drawing on established judicial authority to formulate their positions. In the US legal system, stare decisis represents the "doctrine of precedent, under which a court must follow earlier decisions when the same points arise again in litigation". Under "vertical" stare decisis, the decisions of the highest court in a jurisdiction create mandatory precedent that must be followed by lower courts in that jurisdiction. For example, the US Supreme Court creates binding precedent that all other federal courts must follow.
Common law courts generally explain in detail the legal rationale behind their decisions, with citations of both legislation and previous relevant judgments, and often interpret the wider legal principles. The necessary analysis (called ratio decidendi) then constitutes a precedent binding on other courts. By contrast, civil law jurisdictions are generally shorter, referring only to statutes.
Case law plays a significant role in shaping the legal system and ensures it evolves when necessary. It can provide clarity and guidance to legal professionals on how laws are interpreted and applied in real-life situations, and helps to ensure consistency in court rulings by drawing on the legal precedents that have been set.
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Court hierarchy
Case law is a key component of the legal system, providing guidance, consistency, and precedent for legal interpretations and rulings. It is a law that is based on precedents, or the judicial decisions from previous cases, rather than laws based on constitutions, statutes, or regulations. The doctrine of stare decisis, a Latin phrase meaning "let the decision stand", is an important principle within case law, requiring judges to follow the historical rulings of higher judges and courts.
The hierarchy of the courts is a crucial aspect of the judicial system, as it allows decisions made by a lower court to be appealed and reviewed by a higher court. In common law systems, most courts are bound by their own previous decisions in similar cases, and all lower courts should make decisions consistent with the previous decisions of higher courts.
In the UK, the court hierarchy begins with criminal cases starting in the Magistrates' Court, with more serious matters being sent to the Crown Court. Appeals from the Crown Court go to the Court of Appeal Criminal Division and potentially the UK Supreme Court. Civil cases usually start in the County Court, with appeals going to the High Court and then the Court of Appeal.
In Canada, each province and territory has its own system of courts, with lower courts including multiple specialised courts such as small claims courts and family courts. Above these are the superior courts, which may be called the Supreme Court, the Court of Queen's Bench, or the Superior Court of Justice. The highest courts in a province or territory are the Courts of Appeal, which can review the decisions of superior and lower courts. The Supreme Court of Canada is the highest court in the country and the final court of appeal.
In the US, a decision by the US Supreme Court is binding precedent in all courts, while a decision by a lower court such as the US Court of Appeals for the 11th Circuit would not be binding on the Supreme Court or courts from another circuit.
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Civil law and common law differences
Case law is a key component of the legal system and plays a significant role in shaping it. It is a law that is based on precedents, or the judicial decisions from previous cases, rather than law based on constitutions, statutes, or regulations. It is developed by interpreting and applying existing laws to a specific situation and clarifying them when necessary. This process then sets a legal precedent that other courts are required to follow, guiding future rulings and interpretations of a particular law.
Civil law and common law are the two most widely used legal systems in the world. They differ in their applications, origins, sources of authority, and other factors. About 150 nations operate under civil law systems, whereas about 80 follow common law.
Common law systems follow the doctrine of stare decisis, which means that courts are bound by their own previous decisions in similar cases. According to stare decisis, all lower courts should make decisions consistent with the previous decisions of higher courts. Common law courts generally explain in detail the legal rationale behind their decisions, with citations of both legislation and previous relevant judgments, and often interpret the wider legal principles. The necessary analysis, called ratio decidendi, then constitutes a precedent binding on other courts.
On the other hand, civil law jurisdictions tend to appoint graduates straight out of university, whereas common law jurisdictions usually appoint judges after successful legal careers. Civil law jurisdictions adhere to the tradition that the reader should be able to deduce the logic from the decision and the statutes. Decisions in civil law jurisdictions are generally shorter, referring only to statutes.
Some legal systems, such as Scots law in Scotland and types of civil law jurisdictions in Quebec and Louisiana, do not fit neatly into the dual common-civil law system classifications. These systems are sometimes referred to as mixed systems of law.
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Frequently asked questions
Case law is a law that is based on precedents, or the judicial decisions from previous cases, rather than law based on constitutions, statutes, or regulations.
Case law provides guidance, consistency, and precedent for legal interpretations and rulings. It helps to shape the legal system and ensures it evolves when necessary.
Case law is developed by interpreting and applying existing laws to a specific situation and clarifying them when necessary. This process then sets a legal precedent that other courts are required to follow.
Stare decisis, a Latin phrase meaning "let the decision stand", is the principle by which judges are bound to past decisions. Under stare decisis, a court must follow earlier decisions when the same points arise again in litigation.
Case law is developed from judicial opinions or decisions over time, whereas statutory law comes from legislative bodies. Case law provides the legal rationale behind decisions, with citations of both legislation and previous relevant judgments, while statutory law is written abstractly.
