
Administrative law is a branch of law that governs the creation and operation of administrative agencies and the implementation and enforcement of laws enacted by legislative bodies. It involves rule-making and adjudication, with rules and regulations published in a register and compiled in a code. Administrative law may also apply to the review of decisions made by semi-public bodies, such as non-profit corporations and disciplinary boards, which affect the legal rights of a specific group. While administrative decision-making bodies are often controlled by larger governmental units, their decisions are subject to judicial review by courts of general jurisdiction, which examine the methods and processes behind the decisions.
| Characteristics | Values |
|---|---|
| Definition | Common law is a body of unwritten laws based on legal precedents established by the courts. |
| Other Names | Judicial precedent, judge-made law, case law |
| Basis | Precedent, or stare decisis ("to stand by things decided") |
| Sources | Judicial decisions, interpretations, and opinions |
| Applicability | Common law is practiced in Australia, Canada, Hong Kong, India, New Zealand, the United Kingdom, and the United States. |
| Function | Rule-making and adjudication (or enforcement) |
| Examples | The Environmental Protection Agency and the Department of Motor Vehicles create administrative laws at the federal and state levels, respectively. |
| Publication | Rules, regulations, and decisions are published in registers and codes. Judicial decisions are published in reporters (or reports). |
| Appeal Process | Administrative appeals involve filing with a higher-ranking administrative body than the one that made the primary decision. |
| Historical Context | Common law was institutionalized by Henry II in the 12th century, unifying local customs into a national system. |
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What You'll Learn

Common law is judge-made law
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 means "to stand by things decided", where courts adhere to precedents established by previous rulings. The judge presiding over a case determines which precedents apply to that particular case.
The concept of common law was first institutionalised by Henry II, the first Plantagenet king, in 1154. He created a unified system of law "common" to the country by incorporating and elevating local customs to the national level, eliminating arbitrary remedies, and reinstating a jury system. This jury system involved citizens sworn on oath to investigate criminal accusations and civil claims.
Common law is primarily developed through judicial decisions rather than statutes. It draws from institutionalised opinions and interpretations from judicial authorities and public juries. Common law sometimes provides the inspiration for new legislation. It is based on precedent, or judicial rulings made in previous similar cases, and allows for some freedom in interpretation.
Common law is practised in Australia, Canada, Hong Kong, India, New Zealand, and the United Kingdom. It is also a source of criminal law in the United States, where it refers to the common law rules inherited from England.
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Common law is case law
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 common law is primarily developed through judicial decisions, also known as judge-made law, rather than statutes.
Common law is derived from judicial rulings made in previous similar cases. The presiding judge determines which precedents to apply when deciding on a new case. This 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 influences the decision-making process in unusual cases where the outcome cannot be determined based on existing statutes or written rules of law.
The term "judge-made law" was introduced by Jeremy Bentham as a criticism of the pretense of the legal profession. The modern legal practice of applying case law as precedent has made the declaratory theory of common law obsolete. This theory, attributed to William Blackstone, stated that common law reaffirmed pre-existing customs but did not make new law.
Common law originated in the practices of the courts of English kings following the Norman Conquest. In 1154, Henry II became the first Plantagenet king and institutionalised common law by creating a unified system of law "common" to the country. He did this by incorporating and elevating local customs to the national level, ending local control and peculiarities, eliminating arbitrary remedies, and reinstating a jury system.
Today, common law is practiced in Australia, Canada, Hong Kong, India, New Zealand, and the United Kingdom. It is also practiced in the United States, where it refers to the common law rules brought over from England.
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Common law is deeply rooted in stare decisis
Common law, also known as case law, is a body of law primarily developed through judicial decisions instead of statutes. It is deeply rooted in stare decisis, which means "to stand by things decided". In other words, common law is largely based on precedent, where courts follow precedents established by previous rulings in similar cases. When a similar case has already been resolved, courts typically align their reasoning with the precedent set in that previous decision.
The common law, so-called because it was common to all the king's courts across England, was institutionalised by Henry II in 1154. Henry created a unified system of law common to the country, incorporating and elevating local customs to the national level. This ended local control and peculiarities, eliminated arbitrary remedies, and reinstated a jury system.
The modern legal practice of applying case law as precedent was influenced by Jeremy Bentham's critique of the legitimacy of common law. This practice, known as "judge-made law", made obsolete the declaratory theory of common law that prevailed in Blackstone's time. According to this theory, common law reaffirmed pre-existing customs but did not create new law.
Common law jurisdictions, such as state supreme courts, are empowered to develop common-law doctrines in addition to interpreting democratically enacted texts. This dual function of interpretation and common-law judging calls for two distinct approaches to stare decisis. In common-law capacities, state supreme courts should adhere to traditional stare decisis formulations when resolving disputes. This is because the doctrine of stare decisis itself developed at common law and carries greater legal and practical significance in this context.
In conclusion, common law is deeply rooted in stare decisis as it relies on judicial precedent and previous rulings to establish precedents that guide future court decisions. This system of law, established by English kings and shaped by legal theorists, continues to influence legal practices today.
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Common law is based on precedent
Common law, also known as case law, is a body of unwritten laws based on legal precedents established by the courts. It is primarily developed through judicial decisions rather than statutes. Although common law may incorporate certain statutes, it is largely based on precedent—judicial rulings made in previous similar cases. The modern legal practice of applying case law as precedent made obsolete the declaratory theory of common law that prevailed in Blackstone's time.
The modern definition of common law as "case law" or ratio decidendi was eventually adopted by many notable writers, including A. V. Dicey, William Markby, Oliver Wendell Holmes, John Austin, Roscoe Pound, and Ezra Ripley Thayer. Common law draws from institutionalized opinions and interpretations from judicial authorities and public juries. It is deeply rooted in stare decisis, which means "to stand by things decided". Here, 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.
The presiding judge determines which precedents to apply in deciding each new case. 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 judge's presentation of precedents that apply to a case can significantly influence the criteria that a jury uses to interpret a case. For example, in the 19th and early 20th centuries, feminists who fought for women's rights often faced difficulties due to common law precedents that marginalised certain groups.
Common law is a dynamic system that allows for the adaptation of laws to situations that were not contemplated at the time by the legislature. It is a valuable tool for resolving unusual cases where the outcome cannot be determined based on existing statutes or written rules of law.
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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 common law is primarily developed through judicial decisions, rather than statutes. In other words, it draws from institutionalized opinions and interpretations from judicial authorities and public juries.
The concept of common law was institutionalized by Henry II, the first Plantagenet king, in 1154. He created a unified system of law "common" to the country, ending local control and eliminating arbitrary remedies. This was done by reinstating a jury system, where citizens were sworn on oath to investigate criminal accusations and civil claims. The jury would reach a verdict through evaluating common local knowledge, rather than necessarily through the presentation of evidence.
Common law is often associated with the legal systems of countries that were formerly British colonies, such as the United States, Australia, Canada, and India. In these countries, common law forms the basis of the legal system and is considered the default law. This is because, during the colonial period, the British brought over their own common law rules, which were then adopted and adapted by the colonies.
In the United States, common law is particularly influential in criminal law, where it serves as one of the sources of criminal law alongside constitutions, legislative enactments, administrative rules, and case law. Common law can also be found in civil law, where it is often used in situations where there is no applicable statute or written rule of law. For example, the concept of common-law marriage acknowledges similar rights to married couples for couples that are not officially married if certain conditions are met.
While common law has been criticized for leading to the marginalization or disempowerment of certain groups, it offers flexibility and adaptability to the legal system. It allows judges to interpret and apply precedents to new cases, filling in gaps that may exist in statutory law.
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Frequently asked questions
Common law is a body of law derived from judicial decisions, rather than statutes or constitutions. It is also known as case law or judge-made law.
Common law draws from institutionalized opinions and interpretations from judicial authorities and public juries. Judges present precedents that apply to a case, influencing the criteria that a jury uses to interpret it.
Administrative law is made by administrative agencies or public bodies, such as non-profit corporations or disciplinary boards. Common law, on the other hand, is primarily developed through judicial decisions.
A modern example of common law in action is the concept of common-law marriage, which grants similar rights to unmarried couples as those with a marriage license.
Common law is practiced in Australia, Canada, Hong Kong, India, New Zealand, and the United Kingdom. It is also used in the United States, where it evolved from British traditions during the colonial period.





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