
Common law, also known as case law, is a body of unwritten laws based on legal precedents established by the courts. It is a flexible and context-sensitive system of law that evolves through judicial decisions, in contrast to statutory law, which is created by legislatures through written laws or statutes. Common law is derived from customs and practices that have developed over time and is shaped by the rulings of judges in specific cases. It is based on the principle of stare decisis, which means that previous court decisions serve as binding precedents for future cases. This ensures consistency and predictability in the legal system.
| Characteristics | Values |
|---|---|
| Definition | Case law or ratio decidendi |
| Basis | Based on precedent |
| Principle | Stare decisis |
| Sources | Written decisions and precedents |
| Jurisdiction | Requires several stages of research and analysis to determine "what the law is" in a given situation |
| Sources of law | Relevant statutes and cases |
| Weight | More recent decisions and decisions of higher courts or legislatures carry more weight |
| Application | Applies to similar cases |
| Consistency | Ensures consistency and predictability in the legal system |
| Flexibility | Evolves through judicial decisions, making it flexible and context-sensitive |
| Custom | Reflects society's customs and practices as interpreted and adjudicated by courts |
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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 a flexible and context-sensitive system of law that evolves through judicial decisions, in contrast to statutory law, which is created by legislatures through written laws or statutes. Common law is derived from customs and practices that have developed over time and is shaped by the rulings of judges in specific cases. It is not created through legislation but is instead based on the principle of stare decisis, which means that previous court decisions serve as binding precedents for future cases. This ensures consistency and predictability in the legal system.
Common law is often associated with the English common law, which traces its history back to the earliest times and the "ancient unwritten universal custom" view. This view was the foundation of the first treatises by Blackstone and Coke and was universal among lawyers and judges until the mid-19th century. However, it is important to recognize that for the past 100 years, legal professionals have acknowledged that this ancient view does not align with the realities of the origin and development of the law.
In a common law jurisdiction, a thorough process of research and analysis is required to determine "what the law is" in a given situation. This involves several steps, including ascertaining the facts, locating relevant statutes and cases, extracting principles and statements from various courts, and integrating all the information to make a decision. Common law relies on detailed records of similar situations and statutes since there is no official legal code that can be directly applied to a case.
The judge presiding over a case is responsible for determining which precedents are applicable. While higher court decisions carry more weight, lower courts are not strictly bound by them and can choose to modify or deviate from precedents if they are outdated or if the current case presents substantially different circumstances. However, it is rare for lower courts to overturn established precedents.
Common law is distinct from civil law, which is prevalent in Continental Europe, Mexico, most of Central and South America, and some African countries. Civil law is a comprehensive, codified set of legal statutes created by legislators, clearly defining the cases that can be brought to court and the associated procedures and punishments. While common law is based on precedent and judicial decisions, civil law relies on written decisions as its source of law.
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Common law is based on precedent
Common law is a body of unwritten laws based on legal precedents established by the courts. It is also referred to as case law or ratio decidendi. Common law is not based on a comprehensive set of statutes or written rules, but rather on societal customs and practices as interpreted and adjudicated by courts throughout history. It is a flexible and context-sensitive system of law that evolves through judicial decisions.
Common law is based on the principle of stare decisis, which means that previous court decisions serve as binding precedents for future cases. When courts encounter similar facts or legal issues in new cases, they look to past rulings to determine how to resolve the current matter. This ensures that similar cases lead to similar legal outcomes, maintaining fairness and consistency in the legal system. The example set by higher courts is binding on cases tried in lower courts. However, lower courts can choose to modify or deviate from precedents if they are outdated or if the current case is substantially different.
The process of determining "what the law is" in a given situation under common law involves several stages of research and analysis. 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 predict 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 determines "what the law is".
Common law is often contrasted with civil law or statutory law, which is created by legislatures through written laws or statutes. While civil law provides a clear framework for cases that can be brought to court and the procedures for handling claims, common law relies on the interpretation of past judicial decisions to guide current cases. This distinction can be observed in the different legal traditions of common law jurisdictions, such as England and the United States, and civil law jurisdictions, such as Continental Europe and Mexico.
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Common law is flexible and context-sensitive
Common law is a body of unwritten laws based on legal precedents established by the courts. It is flexible and context-sensitive, evolving through judicial decisions rather than through legislation or executive action. This means that common law is capable of adapting to changing social norms and values, and it can address new and unusual cases that may not be covered by existing statutes or written rules.
The flexibility of common law is evident in its reliance on precedent, where past judicial decisions guide current cases. This principle of stare decisis ensures that similar cases are treated in a similar manner, upholding the integrity of the legal process. Lower courts follow the example set by higher courts, but they also have the flexibility to modify or deviate from precedents if they are outdated or if the current case is substantially different. This dynamic nature of common law allows it to evolve and adapt over time.
Common law's context-sensitivity is also influenced by societal customs and practices. It reflects society's norms and values as interpreted and adjudicated by courts throughout history. For example, in personal injury cases, judges may refer to previous rulings on negligence to determine the outcome of new cases with similar circumstances. This context-sensitive approach ensures that common law remains relevant and responsive to societal changes.
The application of common law involves several stages of research and analysis to determine "what the law is" in a given situation. This includes ascertaining the facts, locating relevant statutes and cases, extracting principles and analogies, and considering the likelihood of how a court will rule based on past decisions. This analytical process allows for a nuanced understanding of the law and enables judges to adapt their rulings to the specific context of each case.
In summary, common law is a flexible and context-sensitive legal system that adapts to changing social norms and addresses unique cases. It evolves through judicial decisions and the establishment of precedents, ensuring fairness and consistency in the legal process while allowing for modifications when necessary. Common law's dynamic nature and reliance on societal customs and practices contribute to its adaptability and responsiveness to the needs of a changing society.
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Common law is derived from societal customs and practices
Common law is a body of unwritten laws 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 derived from societal customs and practices, as it evolves through judicial decisions, making it flexible and context-sensitive.
Until the early 20th century, common law was widely considered to derive its authority from ancient Anglo-Saxon customs. Common law was defined as "unwritten law" (lex non scripta) in legal dictionaries, including Bouvier's Law Dictionary and Black's Law Dictionary. According to William Blackstone's declaratory theory, common law reaffirmed pre-existing customs but did not create new laws.
Common law is distinct from civil law, which is a comprehensive, codified set of legal statutes created by legislators. Civil law clearly defines the cases that can be brought to court, the procedures for handling claims, and the punishment for an offence. In contrast, common law is flexible and can respond to changes in society. It does not require lawmakers to pass changes in statutes and codes, which can be a lengthy or impossible process.
In a common law jurisdiction, judges determine which precedents to apply in each new case. They are empowered to resolve issues and establish new precedents in "cases of first impression" with no precedent or clear legislative guidance. This means that common law is derived from societal customs and practices, as judges base their decisions on the specific circumstances of each case.
The early development of case law in the thirteenth 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 Year Books are a principal source for understanding the development of legal doctrines, concepts, and methods during the period when common law took on a recognisable form.
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Common law is also known as 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 a flexible and context-sensitive system of law that evolves through judicial decisions rather than through written laws or statutes. Common law is derived from customs and practices that have developed over time and is shaped by the rulings of judges in specific cases.
In a common law jurisdiction, several stages of research and analysis are required to determine "what the law is" in a given situation. This involves ascertaining the facts, locating relevant statutes and cases, extracting principles, analogies, and statements made by courts, and then integrating all the information to determine "what the law is". 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 at hand.
The judge presiding over a case determines which precedents apply to that particular case. The example set by higher courts is binding on cases tried in lower courts. This system promotes stability and consistency in the legal system. Lower courts can choose to modify or deviate from precedents if they are outdated or if the current case is substantially different from the precedent case. However, this is a rare occurrence.
Common law is often contrasted with civil law, which is a comprehensive, codified set of legal statutes created by legislators. Civil law clearly defines the cases that can be brought to court, the procedures for handling claims, and the punishment for an offense. It is important to note that common law is not the same as statutory law, which is created through legislation. Common law develops over time as courts follow the established principles from earlier decisions, ensuring consistency and predictability in the legal system.
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Frequently asked questions
Common law is best defined as law based on precedent. This means that it is a legal system in which the law is primarily developed through judicial decisions, rather than through legislation or executive action.
Statutory law is created by legislatures through written laws or statutes, whereas common law evolves through judicial decisions, making it flexible and context-sensitive.
Precedent ensures that once a decision is made, it sets a guiding standard for future similar cases. This helps to maintain fairness and legal consistency.
In unusual cases where the outcome cannot be determined based on existing statutes or written rules, common law influences the decision-making process by providing a framework based on legal precedents and societal customs.
Common law marriage, also known as a non-ceremonial marriage, is a legal framework that allows couples to be considered married without formally registering their union. While it is not common in the U.S., some states recognize common law marriage under certain requirements.

























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