
Common law, also known as case law, is a body of unwritten laws based on legal precedents established by the courts. It is deeply rooted in stare decisis, which means to stand by things decided. Common law originated in England and was spread to its colonies, including the United States. While the US operates under a dual system of common and civil law, none of its states have a pure common law system due to the presence of codified statutes. Common law is flexible and adaptable to unforeseen situations, as it allows judges to establish new precedents in cases of first impression.
| Characteristics | Values |
|---|---|
| Definition | "The ancient law of England based upon societal customs and recognized and enforced by the judgments and decrees of the courts." |
| Basis | Court decisions, societal customs, and precedents |
| Sources | Judicial decisions, previous rulings, and statutes |
| Nature | Unwritten laws |
| Adaptability | Can be adapted to situations unforeseen by lawmakers |
| Flexibility | Allows for changes in response to societal shifts |
| Efficiency | Shorter court proceedings, saving time and money |
| Judicial Discretion | Judges determine which precedents to apply |
| Legislative Influence | Inspires new legislation |
| Freedom of Contract | Few provisions are implied into the contract by law |
| Judicial Precedent | Stare decisis ("to stand by things decided") |
| Marriage Recognition | Recognizes common-law marriages |
| Jurisdiction | Practiced in Australia, Canada, Hong Kong, India, New Zealand, the United Kingdom, and the United States |
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What You'll Learn

Common law is deeply rooted in stare decisis
Common law, also known as case law or judge-made law, is a body of unwritten laws based on legal precedents established by the courts. It is deeply rooted in stare decisis, which translates to "to stand by things decided". This means that common law is primarily developed through judicial decisions and rulings made in previous similar cases, rather than statutes.
The concept of stare decisis in common law means that courts follow precedents established by previous decisions. When a similar case has been resolved, courts typically align their reasoning with the precedent set in that decision. This promotes stability and consistency in the legal justice system. The presiding judge determines which precedents to apply in deciding each new case, and they are empowered to resolve issues and establish new precedents in "cases of first impression" with no precedent or clear legislative guidance.
The common law system originated in England following the Norman Conquest in 1066, gradually supplanting local folk and manorial courts to establish a unified legal system. It was then spread to various colonies by the British Empire, including the United States, where it evolved during the colonial period. Today, the US operates under a dual system of both common and civil law, and common law is practiced in several other countries, including Australia, Canada, and New Zealand.
While common law is not common in the US, some states have statutes or allow for common law marriage if certain requirements are met. State supreme courts, as common-law courts, are empowered to develop common-law doctrines in addition to interpreting democratically enacted texts. However, the interpretation of statutes and constitutions and common-law judging may require distinct approaches to stare decisis.
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Common law is a body of unwritten laws
Common law, also known as case law, is a body of unwritten laws based on legal precedents established by the courts. It is deeply rooted in stare decisis, which means "to stand by things decided". This means that courts follow precedents established by previous decisions. When a similar case has been resolved, courts typically align their reasoning with the precedent set in that decision. In a "case of first impression" with no precedent or clear legislative guidance, judges are empowered to resolve the issue and establish a new precedent.
The common law, so named because it was common to all the king's courts across England, originated in the practices of the courts of the English kings in the centuries following the Norman Conquest in 1066. It established a unified legal system, gradually supplanting the local folk courts and manorial courts. Common law is derived from its original appearance in medieval England but is still very much in effect in the US and elsewhere today. The US common-law system evolved from a British tradition that spread to North America during the 17th and 18th centuries. Common law is also practised in Australia, Canada, Hong Kong, India, New Zealand, and the United Kingdom.
The basic principles of common law are inherited from the law of the British Mandate of Palestine and thus resemble those of British and American law. This includes the role of courts in creating the body of law and the authority of the supreme court in reviewing and, if necessary, overturning legislative and executive decisions. Common law draws from institutionalized opinions and interpretations from judicial authorities and public juries. Common laws sometimes prove the inspiration for new legislation to be enacted.
The simplest definition of common law is that it is a "body of law" based on court decisions rather than codes or statutes. However, in reality, common law is often more complicated than that. At its centre is the legal principle of stare decisis. In practice, this means that courts and judges need to follow earlier decisions and rulings, otherwise known as case law, when dealing with similar cases later. For example, if a court makes a particular decision based on a specific set of facts, then the court is required to follow that decision if they ever rule on the same or a closely related issue.
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Common law is judge-made law
Common law, also known as judicial precedent, judge-made law, or case law, is a body of unwritten laws based on legal precedents established by the courts. It is deeply rooted in stare decisis, which means "to stand by things decided". In other words, common law is largely based on precedent—judicial rulings made in previous similar cases.
The term "judge-made law" was introduced by Jeremy Bentham as a criticism of the pretense of the legal profession. It is created through court decisions, not statutes. Judges shape the law by interpreting statutes and filling gaps where legislation is silent or ambiguous. Judicial lawmaking operates under constraints such as precedent and statutory interpretation. Common law evolves incrementally through case decisions, with courts balancing consistency and adaptation to social needs.
Judge-made common law operated as the primary source of law for several hundred years before Parliament acquired legislative powers to create statutory law. The early development of case law in the 13th century has been traced to Bracton's "On the Laws and Customs of England", which led to the yearly compilations of court cases known as Year Books. These are known as the law reports of medieval England and are a principal source of knowledge of the developing legal doctrines, concepts, and methods from the 13th to the 16th centuries, when common law developed into a recognizable form.
The role of judges in common law is to interpret and apply the law to individual cases. They have the freedom to employ their discretion to make decisions that have not been made by other judges in previous cases. However, they must abide by the written law, even if they are not strictly limited to it. For example, in the United States, the decisions of higher courts are binding on lower courts that handle cases with similar facts and issues.
In summary, common law is a system of law that is primarily developed through judicial decisions rather than statutes. It is deeply rooted in stare decisis and is shaped by judges who interpret and apply the law to individual cases, filling gaps and balancing consistency with social needs.
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Common law is flexible
Common law is a body of unwritten laws based on legal precedents established by the courts. It is deeply rooted in stare decisis, which means "to stand by things decided". This means that courts follow precedents established by previous decisions. 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.
The flexibility of common law also comes from the fact that courts and judges are not elected like Parliament. This means they can be more flexible in their approach towards cases and are not tied to a particular political party. They have the freedom to make decisions that might not be popular with the majority. They do not need to worry about re-election and can judge controversial cases with more freedom.
Common law is also flexible because it is less prescriptive than a civil law system. There are few provisions implied in a contract under a common law system, so it is important to set out all the terms governing the relationship between the parties in the contract itself. This often results in longer contracts than in a civil law country.
However, it is important to note that common law is also criticised for being undemocratic and inconsistent with community standards and values. It is also slower and more reactive than proactive, as it is made by individuals who are not elected or representative of the people.
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Common law is adaptable to the unforeseen
Common law, also known as case law, judge-made law, or judicial precedent, is a body of unwritten laws based on legal precedents established by the courts. It is one of the two main legal systems in use today, the other being civil law. Common law originated in England and has spread to various parts of the world, including North America, Australia, Canada, India, Hong Kong, New Zealand, and many of its former colonies.
One key advantage of common law is its adaptability to unforeseen situations. While legislators cannot predict all the scenarios in which laws will need to be applied, common law allows courts to address situations not originally contemplated by lawmakers. For example, in a "case of first impression" with no precedent or clear legislative guidance, judges are empowered to establish new precedent. This adaptability allows common law to evolve through a series of gradual steps, reducing disruption and ensuring stability and consistency in the legal system.
The flexibility of common law also lies in its interpretation and application. Higher courts can overrule previous decisions without legislative intervention, declaring them as "bad law". Additionally, lower courts can modify or deviate from precedents if they are outdated or if the current case differs substantially from the precedent case. This freedom for interpretation allows common law to adapt to changes in society and new situations that arise over time.
Common law draws from institutionalized opinions and interpretations from judicial authorities and public juries. It relies on detailed records of similar situations and statutes, as there is no official legal code that can be applied to a specific case. Instead, the presiding judge determines which precedents to apply in deciding each new case. This case-by-case approach contributes to the adaptability of common law, as it allows for flexibility in interpreting and applying the law based on the unique circumstances of each case.
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Frequently asked questions
Common law is a body of unwritten laws based on legal precedents established by the courts. It is deeply rooted in stare decisis, which means "to stand by things decided". Common law is derived from judicial decisions instead of from statutes.
Common law is used in countries that were former British colonies or protectorates, including the United States, Australia, Canada, Hong Kong, India, New Zealand, and the United Kingdom.
Common law relies on detailed records of similar situations and statutes. The presiding judge determines which precedents apply to a particular case. Decisions made by higher courts are typically binding on lower courts in the same jurisdiction.






























