
Common law, also known as case law, is a body of law based on legal precedents established by the courts. It is largely based on precedent—judicial rulings made in previous similar cases. The presiding judge determines which precedents to apply in deciding each new case. Common law is deeply rooted in stare decisis (to stand by things decided), where courts follow precedents established by previous decisions. In a common law jurisdiction, several stages of research and analysis are required to determine what the law is in a given situation.
| Characteristics | Values |
|---|---|
| Basis | Court decisions, not codes or statutes |
| Type of law | Unwritten, Uncodified |
| Sources | Precedent, institutionalized opinions, and interpretations from judicial authorities and public juries |
| Decision-making | Guided by precedent, but not bound by it |
| Consistency | Stability and consistency are promoted by following precedent |
| Adaptability | Can address unforeseen situations and adapt to changes in society |
| Efficiency | Court proceedings can be shorter since judges only need to follow precedent |
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What You'll Learn

Common law is a body of unwritten laws
Common law is generally uncodified, meaning there is no comprehensive compilation of legal rules and statutes. While common law does incorporate certain statutes, it is largely based on precedent—judicial rulings made in previous similar cases. The presiding judge determines which precedents to apply in deciding each new case.
In a common law jurisdiction, several stages of research and analysis are required to determine "what the law is" in a given situation. First, one must ascertain the facts. Then, one must locate any relevant statutes and cases. Next, one must extract the principles, analogies, and statements by various courts to determine how the next court is likely to rule on the facts of the present case. Finally, one integrates all the lines drawn and reasons given, determines "what the law is", and then applies that law to the facts.
Common law is adaptable to unforeseen situations. When lawmakers create statutes and rules, they cannot predict all the situations in which courts may need to apply the laws. In common law systems, courts can address situations not originally predicted by lawmakers. Common law is also flexible, as it can respond to changes in society. Unlike civil law systems, common law doesn't require lawmakers to pass changes in statutes and codes, which can take a long time or never happen.
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Common law is based on precedent
Common law is a body of law based on legal precedents established by the courts. It is also known as case law, and it draws from institutionalised opinions and interpretations from judicial authorities and public juries. Common law originated in England and has since spread to other parts of the world, including the United States, Canada, Australia, and India.
Common law is deeply rooted in the principle of stare decisis, which means "to stand by things decided". This principle dictates that judges should follow the precedents set by previous similar cases when deciding on new cases. The specific precedents to be applied are determined by the presiding judge. In this way, common law promotes stability and consistency in the legal system, as outcomes are based on previous case law rather than subjective viewpoints.
When determining the law in a given situation, several stages of research and analysis are required. This includes ascertaining the facts, locating relevant statutes and cases, and extracting principles, analogies, and statements made by various courts. The decisions of higher courts or legislatures carry more weight and are typically binding on lower courts. However, lower courts can deviate from precedents if they are outdated or if the current case differs significantly from the precedent case.
Common law is adaptable and flexible, as it can address situations not originally predicted by lawmakers and respond to changes in society. It is based on the felt necessities of the time and reflects the prevalent moral and political theories, intuitions of public policy, and even the prejudices shared by judges. Common law decisions may also reflect policy judgments drawn from economics, the social sciences, and business.
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Common law is deeply rooted in stare decisis
Common law is a body of law based on court decisions rather than codes or statutes. It is also known as case law or judge-made law. It draws from institutionalized opinions and interpretations from judicial authorities and public juries. Common law is largely based on precedent, meaning the judicial decisions that have already been made in similar cases. These precedents are maintained over time through the records of the courts as well as historical documentation in collections of case law known as yearbooks and reports.
At the heart of common law is a legal principle known as stare decisis, a Latin phrase that means "to stand by things decided". In practice, stare decisis means that courts and judges need to follow previous decisions and rulings, or caselaw, when dealing with similar cases later. For example, if a court makes a decision based on a specific set of facts, that decision is binding in future cases with the same or very similar issues.
Stare decisis is deeply rooted in common law because it promotes stability and consistency in the legal system. Everyone involved knows that the outcome of a case will be based on previous caselaw and not on subjective, personal viewpoints. This also makes the legal system more efficient, as judges only need to follow precedent when making decisions, saving everyone time and money.
In a common law jurisdiction, several stages of research and analysis are required to determine "what the law is" in a given situation. First, one must establish the facts, then locate any relevant statutes and cases. Then, one must extract the principles, analogies, and statements by various courts to determine how the next court is likely to rule on the facts of the present case. Finally, one integrates all the lines drawn and reasons given and applies that law to the facts.
Common law is adaptable to unforeseen situations. When lawmakers create statutes and rules, they cannot predict all the situations in which courts may need to apply the laws. In common law systems, courts can address situations not originally predicted by lawmakers. Common law is also flexible, as it can respond to changes in society.
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Common law vs civil law
Common law, also known as case law, is a body of unwritten laws based on legal precedents established by the courts. Common law draws from institutionalised opinions and interpretations from judicial authorities and public juries. Common law originated in the practices of the courts of English kings in the centuries following the Norman Conquest and is currently practised in Australia, Canada, Hong Kong, India, New Zealand, the United Kingdom, and the United States.
In a common law jurisdiction, several stages of research and analysis are required to determine the law in a given situation. First, one must ascertain the facts, then locate any relevant statutes and cases, and then extract the principles, analogies, and statements by various courts. The decisions of a court are binding only in a particular jurisdiction, and even within a given jurisdiction, some courts have more power than others.
Civil law, on the other hand, is a comprehensive, codified set of legal statutes created by legislators. Civil law is the most common legal system in the world, practised in about 150 countries. It is rooted in the Roman Empire and was comprehensively codified and disseminated starting in the 19th century, most notably with France's Napoleonic Code (1804) and Germany's Bürgerliches Gesetzbuch (1900). Civil law is generally more prescriptive than common law, with a clear set of rules for how judges need to rule for specific disputes.
Unlike common law, civil law systems do not consider court decisions to be binding in other cases, even if the facts are similar. Civil law judges also tend to give less weight to judicial precedent. For example, the Napoleonic Code expressly forbade French judges from pronouncing general principles of law. Civil law is also contrasted with common law in that it takes the form of legal codes, whereas common law comes from uncodified case law.
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Common law promotes stability and consistency
Common law, also known as case law, is a body of law based on legal precedents established by the courts. It is deeply rooted in the principle of stare decisis, which means "to stand by things decided". This means that common law is largely based on precedent—judicial rulings made in previous similar cases. The presiding judge determines which precedents to apply in deciding each new case.
Firstly, it provides a consistent framework for decision-making. By relying on established precedents, common law ensures that similar cases are treated in a similar manner. This consistency is essential for maintaining stability and predictability in the legal system.
Secondly, common law offers stability through its adaptability and flexibility. Unlike civil law systems, common law can address unforeseen situations and respond to changes in society without requiring lengthy legislative processes. Higher courts can overrule prior decisions if they are deemed outdated or inappropriate, allowing the law to evolve and adapt to new circumstances.
Additionally, common law promotes stability by providing a foundation for new legislation. As common law reflects the institutionalized opinions and interpretations of judicial authorities and public juries, it can inspire and inform the creation of new statutes. This ensures that the law remains relevant and responsive to the needs of the society it serves.
Furthermore, common law contributes to stability and consistency by reducing subjective, personal viewpoints in decision-making. Since judges are bound by precedent, their personal biases are less likely to influence the outcome of a case. This helps maintain a fair and impartial legal system, which is crucial for social stability.
Overall, the reliance on precedent in common law ensures a degree of stability and consistency in the legal system. By following established rulings and adapting to new circumstances, common law provides a stable framework that can evolve over time to meet the changing needs of society.
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Frequently asked questions
Common law is a body of law based on legal precedents established by the courts. It is also known as case law.
Common law relies on detailed records of similar situations and statutes because there is no official legal code that can be applied to a case. The presiding judge determines which precedents apply to a particular case.
Common law is determined by the presiding judge of a case. The judge decides which precedents to apply to the case. Common law is deeply rooted in stare decisis, which means "to stand by things decided".
Common law draws from institutionalized opinions and interpretations from judicial authorities and public juries. It is also based on precedent, or previous rulings made in similar cases.
Common law promotes stability and consistency in the legal system. It is also adaptable to unforeseen situations and flexible, as it can respond to changes in society.





















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