
Common law, also known as case law, is a legal system that is deeply rooted in stare decisis, or to stand by things decided. It originated in England after the Norman Conquest in 1066 and was spread to former colonies, including the United States. Common law is characterised by its reliance on judicial precedent and the style of reasoning inherited from the English legal system. In practice, this means that judges presiding over a case determine which precedents apply, significantly influencing the criteria that a jury uses to interpret a case. Common law is more flexible than statutory law, as it can be adapted to situations not contemplated at the time by the legislature and can be revised without legislative intervention to adapt to new trends.
| Characteristics | Values |
|---|---|
| Binding nature of judicial decisions | Decisions of the highest court can generally only be overturned by that same court or through legislation |
| Freedom of contract | Few provisions are implied into the contract by law |
| Stability and consistency | The principle of stare decisis ensures that previous caselaw is binding |
| Flexibility | Higher courts can overrule prior decisions without requiring legislative intervention |
| Emphasis on precedent | Precedents are maintained over time through court records and historically documented in collections of case law |
| Adaptability | The law can be adapted to situations not contemplated at the time by the legislature |
| Less prescriptive than civil law | Protections of citizens can be enshrined in specific legislation |
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What You'll Learn
- Common law is deeply rooted in stare decisis, where courts follow precedents established by previous decisions
- Common law is flexible, allowing higher courts to overrule prior decisions without legislative intervention
- Common law is derived from judicial decisions and opinions, rather than from statutes or constitutions
- Common law promotes stability and consistency, as outcomes are based on previous caselaw, not subjective viewpoints
- Common law systems have extensive freedom of contract, with few provisions implied into the contract by law

Common law is deeply rooted in stare decisis, where courts follow precedents established by previous decisions
Common law, also known as case law, is deeply rooted in stare decisis ("to stand by things decided"), where courts follow precedents established by previous decisions. In other words, common law draws from institutionalised opinions and interpretations from judicial authorities and public juries. When a similar case has been resolved, courts typically align their reasoning with the precedent set in that decision. This is in contrast to civil law systems, which rely primarily on codes and statutes.
The common law system is more flexible than civil law, as it can respond to changes in society. Common law courts are not absolutely bound by precedent but can reinterpret and revise the law to adapt to new trends in political, legal, and social philosophy. This flexibility allows the law to be adapted to situations that were not contemplated at the time by the legislature. For example, in the United States, common law marriage, also known as a non-ceremonial marriage, is a legal framework that may allow couples to be considered married without having formally registered their union.
The process of determining "what the law is" in a given situation involves several stages of research and analysis. First, one must ascertain the facts, locate any relevant statutes and cases, and extract the principles, analogies, and statements by various courts. More recent decisions and those of higher courts carry more weight. Finally, one integrates all the information and determines "what the law is," applying it to the facts of the present case.
In common law systems, precedents are maintained over time through court records and historical documentation in collections of case law known as yearbooks and law reports. This consistent documentation promotes stability and consistency in the legal system, as everyone involved knows that the ultimate outcome will be based on previous case law rather than subjective viewpoints. However, in a case of first impression with no precedent or clear legislative guidance, judges are empowered to resolve the issue and establish new precedent.
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Common law is flexible, allowing higher courts to overrule prior decisions without legislative intervention
Common law is a legal system that is deeply rooted in stare decisis, which means "to stand by things decided". This means that common law is largely based on the precedents established by previous court decisions. When a similar case has been resolved, courts will typically follow the precedent set in that previous decision.
However, common law is also flexible, allowing higher courts to overrule prior decisions without legislative intervention. This is because common law courts are not absolutely bound by precedent. When there is an extraordinarily good reason, higher courts can reinterpret and revise the law to adapt to new trends in political, legal, and social philosophy. This flexibility allows common law to evolve through a series of gradual steps, so that over a decade or more, the law can change substantially without a sharp break, reducing disruptive effects.
In practice, this means that common law systems are considerably more complicated than they may first appear. While the decisions of a court are binding in a particular jurisdiction, some courts have more power than others. For example, decisions made by higher courts are typically binding on lower courts in the same jurisdiction. However, lower courts can choose to modify or deviate from precedents if they are outdated or if the current case is substantially different.
The flexibility of common law is particularly evident when compared to civil law systems. Unlike civil law, common law does not require lawmakers to pass changes in statutes and codes, which can take a long time or never happen at all. This means that common law can respond to changes in society, adapting to situations that were not contemplated at the time by the legislature.
Overall, the flexibility of common law allows it to evolve and adapt to new trends and situations, ensuring that the law remains relevant and responsive to the needs of society.
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Common law is derived from judicial decisions and opinions, rather than from statutes or constitutions
Common law, also known as case law, is a system of law that originated in England in the centuries following the Norman Conquest of 1066. It established a unified legal system, gradually supplanting local folk courts and manorial courts. Common law is deeply rooted in stare decisis, which means "to stand by things decided". This means that common law is derived from judicial decisions and opinions, rather than from statutes or constitutions. In other words, it gives great weight to judicial precedent and the style of reasoning inherited from the English legal system.
In a common law system, there is no official legal code that can be directly applied to a case. Instead, judges rely on detailed records of similar situations and statutes to determine which precedents apply to a particular case. This means that common law is flexible and can respond to changes in society. For example, in the US, common law promotes stability and consistency because everyone involved knows that the ultimate outcome will be based on previous case law, rather than on subjective, personal viewpoints.
In practice, common law systems are complicated. 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. For example, decisions of higher courts or legislatures carry more weight than those of lower courts. Additionally, while a common law court must follow a precedent when ruling on the same or a closely related issue, lower courts can choose to modify or deviate from precedents if they are outdated or if the current case is substantially different.
Common law is also malleable as common law courts are not absolutely bound by precedent. They can reinterpret and revise the law without legislative intervention to adapt to new trends in political, legal, and social philosophy. This incrementalism allows the law to change substantially over a decade or more without causing disruption. In contrast, the legislative process is often slow and difficult to get started.
Many former colonies, particularly those that were formerly British colonies or protectorates, retain the common law system today. This includes the United States, which operates under a dual system of both common and civil law.
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Common law promotes stability and consistency, as outcomes are based on previous caselaw, not subjective viewpoints
Common law, also known as case law, is deeply rooted in stare decisis, which translates to "to stand by things decided". This means that common law is based on the principle of following precedents established by previous decisions. When a similar case has been resolved, courts will typically align their reasoning with the precedent set in that decision. This promotes stability and consistency in the legal system, as outcomes are based on previous caselaw, not subjective viewpoints.
The common law system is more flexible than a civil law system. Common law courts are not absolutely bound by precedent, but they can reinterpret and revise the law to adapt to new trends in political, legal, and social philosophy. This flexibility allows the law to change gradually over time, reducing disruptive effects. In contrast, the legislative process of passing new statutes and codes can be lengthy and challenging to initiate.
In a common law jurisdiction, several stages of research and analysis are required to determine the applicable law in a given situation. This includes ascertaining the facts, locating relevant statutes and cases, and extracting the principles and analogies used by various courts. More recent decisions and those of higher courts carry more weight in establishing precedent. While common law promotes stability and consistency, it can also adapt to situations not contemplated by the legislature at the time of passing the law.
The common law system is less prescriptive than a civil law system. In a civil law system, there is typically a written constitution based on specific codes that outline basic rights and duties. In contrast, common law does not have an official legal code, so judges must determine which precedents apply to a particular case. This can result in a lack of consistency between different jurisdictions, as elements of common law may differ between districts.
Common law originated in the practices of the English king's courts following the Norman Conquest in 1066. It established a unified legal system across England and was later spread to colonies, including the United States. Many former colonies, including the United States, continue to use the common law system today, often in combination with civil law.
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Common law systems have extensive freedom of contract, with few provisions implied into the contract by law
Common law systems, which originated in England and are now used in many former colonies, are deeply rooted in stare decisis, or "to stand by things decided". This means that courts follow precedents established by previous decisions. In other words, common law relies on case law and legal precedent to guide their decisions, rather than on codes and statutes.
In contrast, civil law systems are typically more prescriptive, with many provisions implied into a contract by law, and parties are unable to contract out of certain provisions. These systems are based on specific codes, such as civil code, corporate law, administrative law, tax law, and constitutional law, which outline the procedures for handling claims and the punishment for offences.
While civil law is regularly updated, common law evolves through a series of gradual steps, working out the details over time, so that the law can change substantially over a decade or more without causing disruption. This flexibility allows common law to respond to changes in society.
In practice, determining "what the law is" in a given situation in a common law system involves several stages of research and analysis. First, one must ascertain the facts, then locate any relevant statutes and cases, and then extract the principles, analogies, and statements by various courts. Finally, one integrates all the information gathered and determines "what the law is", applying that law to the facts.
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Frequently asked questions
The common law system is a legal framework based on tradition and practice rather than formal legislation. It is named so because it was common to all the king's courts across England and established a unified legal system.
The common law system relies on detailed records of similar situations and statutes as there is no official legal code. It draws from institutionalized opinions and interpretations from judicial authorities and public juries.
The common law system is more flexible than statutory law. Courts are not bound by precedent and can reinterpret and revise the law without legislative intervention. The system gives great weight to judicial precedent and the style of reasoning inherited from the English legal system.
The civil law system is a codified system of law that takes its origins from Roman law. It is more prescriptive than the common law system and has a written constitution based on specific codes. Civil law clearly defines the cases that can be brought to court, the procedures for handling claims, and the punishment for an offense.
The common law system is followed in the US and other English-speaking countries, including Australia, Canada, Hong Kong, India, New Zealand, and the United Kingdom. Many former colonies also retain the common law system today.











































