
Common law is a legal system that has shaped the legal landscape in many countries around the world. It is characterised by its reliance on judicial decisions and the principle of precedent, where past rulings serve as binding authority for future cases. Common law is more malleable than statutory law, as common law courts can reinterpret and revise the law without legislative intervention. This evolution and refinement of common law play a pivotal role in shaping the legal systems of many countries and addressing the needs of an ever-changing society. Common law promotes stability and consistency, as everyone involved knows that the ultimate outcome will be based on previous case law rather than subjective, personal viewpoints. It also provides extensive freedom of contract, as few provisions are implied into the contract by law. Common law systems tend to give more weight to the separation of powers between the judicial branch and the executive branch.
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What You'll Learn
- Common law promotes stability and consistency
- It is less prescriptive than civil law
- It gives more weight to the separation of powers
- It is flexible, evolving through court rulings and interpretations
- It is widely used, with approximately one-third of the world's population living in common law jurisdictions

Common law promotes stability and consistency
Common law is a legal system that is currently used by approximately one-third of the world's population, either in pure form or in a mixed system that integrates common law with civil law. Common law is deeply rooted in stare decisis, which means "to stand by things decided". This means that common law promotes stability and consistency in several ways.
Firstly, common law is based on the idea of judicial precedent, where courts follow decisions made in previous similar cases. This means that everyone involved in a case knows that the outcome will be based on previous caselaw, rather than on subjective viewpoints. This gives common law a level of predictability and consistency that is often sought after in commercial cases, for example.
Secondly, common law tends to give more weight to the separation of powers between the judicial branch and the executive branch. This means that, in common law systems, criminal proceedings are handled using an adversarial system, in which the prosecutor and adjudicator are two separate people. This is in contrast to civil law systems, where criminal proceedings proceed under an inquisitorial system in which an examining magistrate serves a dual role by first developing the evidence and arguments for one side, and then acting as a neutral judge.
Thirdly, common law is less prescriptive than civil law. This means that, in a common law system, there are fewer provisions implied into a contract by law, and therefore more emphasis is placed on setting out all the terms governing the relationship between the parties in the contract itself. This can provide more flexibility and stability for commercial parties, who can then clearly outline their expectations and responsibilities in a contract.
Finally, common law is constantly evolving and refining, which means that it can adapt to the needs of an ever-changing society. This evolution can be seen in the way that common law has spread and developed over time, from its origins in the practices of English courts after the Norman Conquest, to its spread across the British Isles and overseas colonies, and its continued use in many former colonies today.
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It is less prescriptive than civil law
A common law system is less prescriptive than a civil law system. This means that, in a common law system, there are fewer provisions implied into a contract by law, and more emphasis is placed on the specific terms of the contract itself. This gives parties greater freedom to contract and allows for more flexibility in the negotiation process.
The common law system, with its roots in the practices of English courts following the Norman Conquest in 1066, is deeply rooted in the principle of stare decisis, or "to stand by things decided". This means that courts follow precedents established by previous decisions, promoting stability and consistency in the legal system. When a similar case has been resolved, courts will typically align their reasoning with the precedent set in that previous decision. This is in contrast to civil law systems, which rely primarily on codes and statutes, and where judge-made law has little scope.
The common law system gives greater weight to the separation of powers between the judicial branch and the executive branch. In a common law court, an adversarial system is usually employed, where two sides present their cases to a neutral judge. This is distinct from civil law systems, which are more tolerant of allowing individual officials to exercise both prosecutorial and adjudicatory powers.
The common law system is particularly attractive for commercial parties, as it offers predictability and simplicity in contractual relations. This is due to the reliance on caselaw and legal precedent, which provides a clear framework for understanding how courts are likely to rule on specific issues. The evolution and refinement of common law will continue to shape the legal systems of many countries, particularly former colonies, and address the needs of an ever-changing society.
However, it is important to note that there are trade-offs between the two systems. Civil code systems may offer more stability in the short run, as it is harder for financial investors to move capital out of companies in search of higher returns. Additionally, it may be easier to impose 'social' regulations and requirements on companies in civil code countries.
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It gives more weight to the separation of powers
Common law is a legal system that is used in many countries, particularly those that were formerly British colonies or protectorates, including the United States. It is characterised by its reliance on judicial precedent and the stare decisis doctrine, which means "to stand by things decided". This means that common law systems give great weight to past judicial decisions and the reasoning inherited from the English legal system.
One of the key pros of a system of common law is that it gives more weight to the separation of powers. This is a concept that requires the different branches of government to act as checks and balances on each other's power. It ensures that power is not concentrated in a single person or group, which is seen as a threat to liberty. The separation of powers divides power between the legislature (parliament), which makes and changes laws; the executive, which enforces or implements the laws; and the judiciary, which adjudicates disputes about the law.
In common law systems, the judicial branch is given greater independence from the executive branch. For example, in criminal cases, common law courts use an adversarial system, where the prosecutor and adjudicator are two separate people. The prosecutor, who is part of the executive branch, investigates and presents the evidence to a neutral judge, who is part of the judiciary. In contrast, civil law systems are more likely to allow individual officials to exercise both powers, with criminal proceedings following an inquisitorial system where an examining magistrate serves both roles.
The separation of powers is also reflected in the Australian Constitution, which is structured into chapters that outline the legislative, executive, and judicial powers of the Commonwealth as separate branches of government. The High Court of Australia further ensures that judicial power is kept separate from legislative and executive powers through its power of judicial review.
Overall, the common law system's emphasis on the separation of powers helps to protect human rights and ensure that the government is held accountable and subject to scrutiny.
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It is flexible, evolving through court rulings and interpretations
The common law system is deeply rooted in the principle of stare decisis ("to stand by things decided"), where courts adhere to precedents established by previous rulings. This means that when a similar case arises, courts typically align their reasoning with the precedent set in the previous decision. However, in situations where there is no applicable precedent or clear legislative guidance, judges are empowered to resolve the issue and establish new precedent. This aspect of common law is crucial for its flexibility and evolution.
The evolution of common law occurs through court rulings and interpretations. When a court interprets a statute, prior court decisions interpreting that statute become precedent and are therefore binding. This is a significant difference from civil law systems, where a judge's interpretation of a code is typically not binding in future cases involving different parties. The flexibility of common law allows it to adapt to changing societal needs and shape the legal systems of many countries.
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 considering the principles and statements by various courts. The decisions of higher courts or legislatures carry more weight, and the integration of all these factors guides how the next court will rule on a similar matter. This process ensures that common law is not static but evolves through judicial interpretation and ruling.
Common law's flexibility is further demonstrated in its application to various areas of law, such as business law, estate planning, and tax strategy. For example, disputes over contracts, employment agreements, or intellectual property rights are often resolved using common law principles. By adapting common law principles to modern business law, professionals can empower their clients to protect their interests and avoid legal pitfalls.
Overall, the flexibility and evolution of common law through court rulings and interpretations are key advantages of this legal system. It allows for the continued refinement of the law, ensuring that it remains relevant and responsive to the needs of an ever-changing society.
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It is widely used, with approximately one-third of the world's population living in common law jurisdictions
The common law system is one of the two main types of legal systems in the world, the other being civil law. Common law is deeply rooted in stare decisis, which means "to stand by things decided". This means that courts follow precedents established by previous decisions. In other words, common law systems rely on caselaw and legal precedent to guide their decisions. Common law originated in England following the Norman Conquest in 1066 and was spread across the British Isles, and then to various colonies of the British Empire. As a result, many former colonies, including the United States, retain the common law system today.
Approximately one-third of the world's population lives in common law jurisdictions or in mixed legal systems that integrate common law and civil law. Common law jurisdictions are legal systems that give great weight to judicial precedent and the style of reasoning inherited from the English legal system. Common law systems tend to give more weight to the separation of powers between the judicial branch and the executive branch. For example, in criminal cases, the prosecutor and adjudicator are two separate people. The prosecutor is lodged in the executive branch and presents evidence to a neutral adjudicator in the judicial branch, who makes a decision.
Common law is also associated with extensive freedom of contract, as few provisions are implied into the contract by law. This means that the terms governing the relationship between the parties to a contract must be set out in the contract itself. This is in contrast to civil law systems, which are generally more prescriptive, with many provisions implied into a contract by law.
The widespread adoption of common law can be attributed to its stability and consistency. As common law is based on previous caselaw rather than subjective viewpoints, it provides predictability and simplicity in contractual relations. This is particularly advantageous for commercial parties, who often choose the law of a common law jurisdiction to govern their contracts.
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Frequently asked questions
Common law is a legal system that has shaped the legal landscape in many countries around the world. It is characterised by its reliance on judicial decisions and the principle of precedent, where past rulings serve as binding authority for future cases.
Common law promotes stability and consistency because everyone involved knows that the ultimate outcome will be based on previous case law and not on subjective, personal viewpoints. It is also more flexible than a civil law system, allowing for the adaptation of new trends in political, legal and social philosophy.
In a common law jurisdiction, several stages of research and analysis are required to determine "what the law is" in a given situation. 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 lines drawn and reasons given and determines "what the law is", applying that law to the facts.
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 both powers. Common law is also less prescriptive than civil law, with fewer provisions implied into a contract.






























