
British common law, also known as 'judge-made law', is a body of customary law based on judicial decisions and court rulings, also known as case law or caselaw. It has been administered by the common-law courts of England since the Middle Ages and has influenced the legal systems of many Commonwealth countries, including the United States, India, Pakistan, and Bangladesh. The term judge-made law is derived from the modern practice of adjudication, which applies precedent from case law. This means that judges need to follow earlier decisions and rulings when dealing with similar cases later on. An example of common law in practice is the res ipsa loquitur doctrine, which was first applied in Byrne v Boadle (1863).
| Characteristics | Values |
|---|---|
| Definition | The body of customary law, based on judicial decisions and embodied in reports of decided cases. |
| History | Originated in the practices of the courts of the English kings in the centuries following the Norman Conquest in 1066. |
| Geographical Influence | Influenced the legal systems in the United States, most Commonwealth countries, and former colonies of the British Empire. |
| Court System | Administered by the common-law courts of England and Wales, which stand in contrast to the distinct legal systems in Scotland and Northern Ireland. |
| Legislative Power | Only Parliament has the power to legislate, but the courts have exclusive power to interpret statutes and their true meaning. |
| Judicial Decision-Making | Based on caselaw and legal precedent, where judges follow previous decisions and rulings when dealing with similar cases. |
| Adaptability | Able to address unforeseen situations not predicted by lawmakers and adapt to changes in society. |
| Efficiency | Shorter court proceedings as judges only need to follow precedent, saving time and money. |
| Stability and Consistency | Provides stability and consistency as outcomes are based on previous caselaw rather than subjective viewpoints. |
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What You'll Learn

Influence on former colonies
British colonial expansion brought English common law, which had been developing in England since the 12th century, to newly acquired territories in America, Asia, Africa, and the Pacific. English common law was adapted to local colonial circumstances, for example, in North American colonies, new laws were implemented to regulate master-slave relations. In Australian colonies, the practice of terra nullius (nobody's land) was adopted, refusing to recognise native claims to land.
Many former colonies retain the common law system today, including Barbados, Jamaica, Botswana, Nigeria, Kenya, India, and Burma. Common law systems are legal systems that emphasise judicial precedent and the style of reasoning inherited from the English legal system. 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.
When a former British colony becomes independent, it often adopts a reception statute, by which the new nation adopts pre-independence common law unless explicitly rejected by the legislative body or constitution of the new nation. Examples of countries that have implemented reception statutes include all U.S. states except Louisiana, the states of the U.S., Canada and its provinces, and Hong Kong.
The Commonwealth, a political association of 54 member states, was established in 1949 following the decolonisation of the British Empire. Nearly all of these states are former colonies of the British Empire, and while they have no legal ties, they share values of democracy, human rights, and the rule of law. The UK's relationship with the Commonwealth is influenced by their shared colonial past, and the promotion of a long-run, stable commitment to legality in these countries.
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Precedent and case law
Common law is deeply rooted in stare decisis, a Latin term that means "to stand by things decided". This means that common law is based on the legal principle of precedent, where courts follow previous decisions and rulings, or case law, when dealing with similar cases. This is in contrast to civil law systems, which rely on codes and statutes.
The common law system in England has directly influenced the legal systems of Wales, Ireland, and, later, the British Empire. The law of India, Pakistan, and Bangladesh is largely based on English common law due to the long period of British colonial influence during the British Raj. English common law also influenced the legal systems of the United States and most Commonwealth countries.
In the case of common law, judges are required to follow the precedent established by previous decisions when dealing with similar cases. This promotes stability and consistency in the legal system, as everyone involved knows that the outcome will be based on previous case law rather than subjective viewpoints. It also allows for efficiency in court proceedings, as judges only need to follow precedent when making decisions.
In some cases, however, judges may be empowered to resolve an issue and establish a new precedent if there is no existing precedent or clear legislative guidance. This is known as a "case of first impression". Additionally, higher courts can sometimes overrule prior decisions as "bad law", particularly if they are ill-considered or outdated.
The modern practice of applying case law as precedent is associated with Jeremy Bentham, who criticised the legitimacy of the common law, rendering the previous declaratory theory obsolete.
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Relationship with civil law
Common law is a body of customary law based on court decisions and prior precedents rather than codes or statutes. It originated in the practices of the courts of English kings following the Norman Conquest in 1066. Common law established a unified legal system, gradually replacing local folk courts and manorial courts.
Common law and civil law are the two main legal systems used throughout the world. Common law systems rely on case law and legal precedent to guide their decisions, whereas civil law systems rely on codes and statutes. Civil law, which originated in mainland Europe, centres around a comprehensive code of statutes that outline everything from procedures for handling claims to the punishment for offences. Civil law systems provide clear rules for how judges need to rule for specific disputes.
In common law systems, judges are required to follow earlier decisions and rulings, or case law, when dealing with similar cases later. This is known as the legal principle of stare decisis, which means "to stand by things decided". In civil law systems, however, court decisions are not binding in other cases, even if the facts are similar. For example, in a common law system, if a court interprets a statute, prior court decisions interpreting that statute are considered precedent and are therefore binding. In contrast, in civil law systems, a judge's decision interpreting the text of a code is not binding in later cases involving different parties.
Common law is often described as more flexible than civil law because it can respond to changes in society. In common law systems, lawmakers do not need to pass changes in statutes and codes, whereas civil law systems may require this, which can be a lengthy process. Common law systems are also considered more efficient, as court proceedings can be shorter since judges only need to follow precedent when making decisions.
The legal systems of England and Wales have directly influenced those of Ireland, most Commonwealth countries, and their former colonies, including India, Pakistan, and Bangladesh, and the United States. These jurisdictions often continue to use English common law due to its extensive and predictable body of law, which is advantageous for governing citizens and businesses.
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Judicial independence
The concept of judicial independence dates back to the Magna Carta in 1215, which established that no free man could be arrested or imprisoned without a lawful judgment by his peers. The first phase of judicial independence in England occurred with the Act of Settlement in 1701. The second phase was evident when England's concepts regarding judicial independence spread internationally and were adopted into the domestic law of other countries. Other common law countries, including Canada, Australia, and India, also adopted the British model of judicial independence.
There are two types of judicial independence: institutional independence and decisional independence. Institutional independence means the judicial branch is independent from the executive and legislative branches. Decisional independence is the idea that judges should be able to decide cases solely based on the law and facts, without letting the media, politics, or other concerns sway their decisions.
In the United Kingdom, judicial independence has been influenced by international law and jurisprudence over time. The European Court of Human Rights (ECtHR) has had a significant impact on the conceptual analysis of judicial independence in England and Scotland. The Constitutional Reform Act of 2005 dramatically reformed government control over the administration of justice in England and Wales, discontinuing the position of the Lord Chancellor, one of the country's oldest constitutional offices.
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Development and evolution
Common law, also known as "judge-made law", is deeply rooted in the Latin phrase 'stare decisis' ("to stand by things decided"), where courts follow precedents established by previous decisions. This body of customary law, based on judicial decisions and embodied in reports of decided cases, has been administered by the common-law courts of England since the Middle Ages.
England exported its common law and statute law to its colonies, which is why the legal systems of the United States, India, Pakistan, Bangladesh, and most Commonwealth countries are based on English common law. In the US, each state has its own supreme court with final appellate jurisdiction, resulting in the development of state common law.
In the context of the British Empire, the English legal system was first spread to Wales, then to Ireland and overseas colonies. Jurisdictions that inherited and adopted English common law developed their courts of final appeal in different ways. Those still under the British crown are subject to the Judicial Committee of the Privy Council in London. Over time, the British Dominions established their own local supreme courts, with New Zealand being the last Dominion to do so in 2004.
In 1973, the legal systems in the United Kingdom experienced integration into the system of European Union (EU) law, which had a direct effect on the domestic law of its constituent states. This marked a shift towards the civil-law tradition, which is characterised by a more purposive technique of legislative interpretation than is customary in English common law. The United Kingdom exited the EU in 2020.
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