
Common law and fundamental law are two distinct legal systems with different processes and reasoning. Common law, also known as case law, is a system that relies on past judicial decisions and precedents to guide future rulings. It is a flexible and adaptable system that can address novel legal questions and reflect evolving societal values. On the other hand, fundamental law, or civil law, is a comprehensive, codified set of legal statutes created by legislators. It provides clear rules and procedures for handling claims and determining punishments. Civil law systems are often more tolerant of allowing individual officials to exercise both judicial and executive powers. While common law is prevalent in former British colonies like the US, UK, Canada, and India, civil law originated in mainland Europe and is widely used there.
| Characteristics | Common Law |
|---|---|
| Definition | A body of unwritten laws based on legal precedents established by the courts. |
| Sources | Draws from institutionalized opinions and interpretations from judicial authorities and public juries. |
| Basis for new legislation | Yes, common law has been used as the basis for new legislation. |
| Examples | Common law systems include the US, Canada, India, Australia, Hong Kong, New Zealand, and the UK. |
| Pros | Stability, consistency, flexibility, adaptability, and ability to address new challenges. |
| Cons | None found. |
| Judicial decisions | Emphasizes the importance of past judicial decisions in interpreting and applying current laws. |
| Judicial independence | Judges interpret the law and set legal standards that can be referenced in future litigation. |
| Consistency and predictability | Maintained through the use of precedents. |
| Flexibility | Can respond to changes in society and new challenges. |
| Separation of powers | Common law systems tend to give more weight to the separation of powers between the judicial branch and the executive branch. |
| Adversarial system | Yes, common law courts usually use an adversarial system. |
| Civil law | Civil law systems rely primarily on codes and statutes. |
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What You'll Learn
- Common law is a body of unwritten laws based on legal precedents
- Civil law is a comprehensive, codified set of legal statutes
- Common law promotes stability and consistency
- Civil law systems are more tolerant of allowing individual officials to exercise dual powers
- Common law adapts to reflect societal values and technological changes

Common law is a body of unwritten laws based on legal precedents
Common law is sometimes referred to as case law, as it is a body of law based on court decisions rather than codes or statutes. It draws from institutionalised opinions and interpretations from judicial authorities and public juries. The principle of stare decisis, a Latin phrase meaning "to stand by things decided", is central to common law. This means that decisions made by higher courts are binding on lower courts, ensuring consistency and uniformity in future rulings.
In a common law system, there is no official legal code that can be applied to a case, so judges play an active role in interpreting past rulings and applying them to new, similar cases. This allows common law to be flexible and adaptable to changes in society. For example, in the UK, the common-law offence of "outraging public decency" has been used to prosecute a new intrusive activity called "upskirting". This led to the Voyeurism (Offences) Act being passed in 2019, which officially made upskirting a crime.
Common law promotes stability and consistency because everyone involved knows that the outcome will be based on previous case law rather than subjective, personal viewpoints. It also provides a degree of predictability, as referring to previous rulings helps create expectations for how similar cases will be handled in the future. However, lower courts can choose to modify or deviate from precedents if they are outdated or if the current case is substantially different.
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Civil law is a comprehensive, codified set of legal statutes
Civil law, also known as statutory law, is a comprehensive set of written laws created and enacted by a legislative body. It is a system of law that is largely based on codes and statutes, as opposed to the common law system, which is primarily based on judicial precedent. Civil law, therefore, provides a clear framework of rules that judges must follow when ruling on disputes.
The civil law system, which originated in mainland Europe, is centred around a comprehensive code of statutes that clearly outlines everything from the procedures for handling claims to the punishment for offences. This means that civil law systems have explicit rules for how judges need to rule in many specific disputes. For example, civil law codes contain mandatory notice periods before termination for breach of contract that cannot be avoided or overridden.
Civil law is also distinct from common law in that it does not have the concept of trusts, which are common in common law jurisdictions. In civil law, security interests generally need to be re-registered in the name of the new lender, which can involve additional registration costs and notarial fees.
Another key difference between civil law and common law is that civil law court decisions are not binding in other cases, even if the facts are similar. This is because civil law systems are based on written laws, rather than judicial precedent. In contrast, common law systems rely on stare decisis, a Latin phrase that means "to stand by things decided", where prior court decisions interpreting a statute are binding in future cases involving similar facts.
Overall, civil law is a comprehensive, codified set of legal statutes that provides a clear framework for judges to follow when ruling on disputes. It is distinct from the common law system in its reliance on written laws and codes, rather than judicial precedent and interpretation.
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Common law promotes stability and consistency
Common law is a legal system that is based on judicial decisions and traditions, rather than a civil law system, which relies on a comprehensive set of written rules and codes. Common law, also known as case law, draws from institutionalised opinions and interpretations from judicial authorities and public juries. It is a body of unwritten laws based on legal precedents established by the courts.
Secondly, common law provides a framework for resolving disputes that is balanced, consistent, and flexible. It respects legal traditions and principles while remaining adaptable to societal shifts, new challenges, and modern perspectives. This flexibility allows common law to address situations not originally predicted by lawmakers and respond to changes in society. For example, common law has been used to prosecute new criminal activities, such as "upskirting", by drawing on ancient common law offences like "outraging public decency".
Furthermore, common law promotes stability and consistency by providing predictable expectations for similar cases in the future. When judges refer to previous rulings, they create a framework for how similar cases will be handled, which is essential for legal professionals, businesses, and individuals navigating the legal landscape.
Overall, common law promotes stability and consistency by relying on stare decisis, providing a flexible and adaptable framework for resolving disputes, and creating predictable expectations for future cases based on past rulings.
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Civil law systems are more tolerant of allowing individual officials to exercise dual powers
The two main legal systems used today throughout the world are common law systems and civil law systems. Common law systems rely on case law and legal precedent to guide their decisions, while civil law systems rely primarily on codes and statutes. Common law systems tend to give more weight to the separation of powers between the judicial branch and the executive branch. Civil law systems, on the other hand, are typically more tolerant of allowing individual officials to exercise dual powers.
Civil law systems, which originated in mainland Europe, center around a comprehensive code of statutes that clearly outlines everything from the procedures for handling claims to the punishment for offenses. Civil law is a comprehensive, codified set of legal statutes created by legislators. Civil systems clearly define the cases that can be brought to court, the procedures for handling claims, and the punishments for offenses. Judicial authorities use the conditions in the applicable civil code to evaluate the facts of each case and make legislative decisions. While civil law is regularly updated, the goal of standardized codes is to create order and reduce biased systems in which laws are applied differently from case to case.
In contrast, common law systems, such as those used in the United States, Canada, India, and Australia, are based on court decisions rather than codes or statutes. Common law draws from institutionalized opinions and interpretations from judicial authorities and public juries. Common law promotes stability and consistency because everyone involved knows that the ultimate outcome will be based on previous case law rather than subjective, personal viewpoints. Common law is also flexible, as it can respond to changes in society. For example, higher courts can overrule prior decisions as "bad law" without waiting for lawmakers to do so.
One example of the contrast between common law and civil law systems is the allocation of responsibility between the prosecutor and the adjudicator. Common law courts usually use an adversarial system, in which the prosecutor and adjudicator are two separate people. The prosecutor presents the evidence to a neutral adjudicator, who makes a decision. In civil law systems, criminal proceedings proceed under an inquisitorial system in which an examining magistrate serves both roles by first developing the evidence and arguments for one side and then making a decision.
While there are pros and cons to both systems, civil law systems' tolerance for allowing individual officials to exercise dual powers can be seen as providing more flexibility and efficiency in the legal process.
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Common law adapts to reflect societal values and technological changes
Common law is a body of unwritten laws based on legal precedents established by the courts. It is one of the most influential legal systems in the world, with many countries adopting features from it into their own legal systems. The common law system as we know it started in England during the Middle Ages and has since spread to countries like the United States, Canada, India, and Australia.
Common law is often contrasted with civil law, which is a comprehensive, codified set of legal statutes created by legislators. Civil law systems, which originated in mainland Europe, center around a comprehensive code of statutes that outline procedures for handling claims and punishments for offenses. Unlike common law, civil law court decisions are not binding in other cases, even if the facts are similar.
One of the key advantages of common law is its adaptability and flexibility. Common law can respond to changes in society and technological advancements, ensuring that the legal system remains relevant and effective in contemporary times. For example, in the United Kingdom, the common-law offense of "outraging public decency" has been used to prosecute a new intrusive activity called "upskirting". This ancient common law was used until February 2019 when the Voyeurism (Offenses) Act was passed, making "upskirting" a crime punishable by up to two years in prison.
The dynamic nature of common law allows it to address emerging issues that may not have been previously addressed by legislation. Courts can create new precedents or modify existing ones to tackle novel legal questions. This balance between tradition and adaptability is essential in accommodating societal shifts and incorporating modern perspectives while respecting established legal norms.
Common law also provides stability and consistency. By relying on past judicial decisions and precedents, common law promotes consistency in legal outcomes. This predictability helps create expectations about how similar cases will be handled in the future. However, lower courts can deviate from precedents if they are outdated or if the current case differs significantly from the precedent case.
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Frequently asked questions
Fundamental law refers to the legislative statutes and agency regulations that are interpreted by court decisions, also known as interstitial common law.
Common law is a body of unwritten laws based on legal precedents established by the courts. It is a flexible system that adapts over time to reflect societal values, technological changes, and unique case circumstances.
Common law is a system of law that relies on case law and legal precedent to guide decisions, whereas fundamental law refers to the legislative statutes and regulations that are interpreted by court decisions.
Common law is one of the most influential legal systems in the world. It is used in countries like the United States, the United Kingdom, Canada, India, Australia, and New Zealand.









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