Common law is also known as CASE LAW or PRECEDENT. It is different from a statute, as statutes are passed and adopted through the legislative process (by the legislative branch).

In law, common law (also known as judicial precedent or judge-made law, or case law) is that body of law derived from judicial decisions of courts and similar tribunals.The defining characteristic of “common law” is that it arises as precedent. In cases where the parties disagree on what the law is, a common law court looks to past precedential decisions of relevant courts, and synthesizes the principles of those past cases as applicable to the current facts. If a similar dispute has been resolved in the past, the court is usually bound to follow the reasoning used in the prior decision (a principle known as stare decisis). If, however, the court finds that the current dispute is fundamentally distinct from all previous cases (called a “matter of first impression”), and legislative statutes are either silent or ambiguous on the question, judges have the authority and duty to resolve the issue (one party or the other has to win, and on disagreements of law, judges make that decision).The court states an opinion that gives reasons for the decision, and those reasons agglomerate with past decisions as precedent to bind future judges and litigants. Common law, as the body of law made by judges,stands in contrast to and on equal footing with statutes which are adopted through the legislative process, and regulations which are promulgated by the executive branch (the interactions among these different sources of law are explained later in this article). Stare decisis, the principle that cases should be decided according to consistent principled rules so that similar facts will yield similar results, lies at the heart of all common law systems.

The common law—so named because it was “common” to all the king’s courts across England—originated in the practices of the courts of the English kings in the centuries following the Norman Conquest in 1066.The British Empire spread the English legal system to its historical colonies, many of which retain the common law system today. These “common law systems” are legal systems that give great precedential weight to common law, and to the style of reasoning inherited from the English legal system.

Legal systems of the world.Common law countries are in several shades of pink, corresponding to variations in common law systems.

Today, one-third of the world’s population lives in common law jurisdictions or in systems mixed with civil law, includingAntigua and Barbuda, Australia, Bahamas, Bangladesh, Barbados, Belize, Botswana, Burma, Cameroon, Canada (both the federal system and all its provinces except Quebec), Cyprus, Dominica, Fiji, Ghana, Grenada, Guyana, Hong Kong, India, Ireland, Israel, Jamaica, Kenya, Liberia, Malaysia, Malta, Marshall Islands, Micronesia, Namibia, Nauru, New Zealand, Nigeria, Pakistan, Palau, Papua New Guinea, Sierra Leone, Singapore, South Africa, Sri Lanka, Trinidad and Tobago, the United Kingdom (including its overseas territories such as Gibraltar), the United States (both the federal system and 49 of its 50 states), and Zimbabwe. Some of these countries have variants on common law systems.

In law, common law (also known as judicial precedent or judge-made law, or case law) is that body of law derived from judicial decisions of courts and similar tribunals. … The British Empire spread the English legal system to its historical colonies, many of which retain the common law system today.

The common law as it is known developed from the Norman conquest of 1066. The conquest included the adoption of the local customs of the people in the adjudication of disputes. A working definition would refer the common law as laws and customs which have from early times been declared to be law by judges in deciding cases brought before them  . It basically concerned the adjudication of local disputes according to local laws.


The common law also known as the “unwritten law of England”; “case law” or “judge-made law” is the local laws which was derived from the distilled local customs, rules and practices of the people. In the common law is found the authoritative exposition of the law relating to the prerogative of the Crown, as expressed in the judgment passes down by the curia regis in the adjudication of disputes. Such disputes as those between individuals, and individuals and public officials and authorities. A classical example would be Entick v Carrington  where it was held that the issuance of general warrants for the search and arrest of those publishing seditious papers were not within the powers of the secretary of states.

More ‘modernly’, the common law meant the law that is not the result of legislation, but that which is derived from cases decided by judges and the value of the judicial precedents set by these cases  .


It was one of the earliest means for the adjudication of disputes and administration of justice.

The common law as it were provided justice for the people before the development of equity. As a result, it was regarded as a tool in the hands of the judges, which was exercised under the prerogative of the monarch.

It evolved several writs for the adjudication of disputes. This was the direct effect of the unending complaints from the people. As such, it provided the action for the recovery of land known as ‘real actions’. This enabled claimants to recover their lands at common law.


One of the most obvious weaknesses of the common law was that it offered remedy to only one problem (monetary) damages; and this was always readily not available. Again, an action could only be started in the Royal courts by a writ purchased from the office of the chancellor.

Since the existence of a common law right depended on there being a procedure for enforcing that right, an action could only be brought if an appropriate writ already existed which covered the facts of the case. Similarly, the procedure for successfully bringing an action was very formal, rigid and therefore leading to delays. It was also too expensive to bring an action.

It did not recognise certain rights, such as the borrower’s right under a mortgage or trusts. For example, if the date for the repayment of a mortgage had passes, the lender regained ownership; even when the borrower was able to pay back the loan.

Litigants had to fit their circumstances to one of the available types of writ. If the case did not fall within one of the available types, there was no way of bringing the case to the common law court. As a result, many people were unable to seek redress from the common law courts.


Decisions in courts are subject to a system of judicial precedent. This is also known as the doctrine of stare decisis which in Latin means ‘to stand by decided matters’. This means that if a court holds (decides) that a particular set of facts should give rise to a particular legal outcome, the principle of fairness means that cases with similar facts should be similarly decided. A precedent can therefore be defined as ‘a decided case that furnishes (or forms) the basis for deciding later cases involving similar facts or issues’ . The idea behind this doctrine is that once a decision has been made on how the law applies to a particular set of facts, similar facts in later cases should be similarly treated.

The modern doctrine of precedent requires that a judge, when deciding cases has a number of questions to deal with. Firstly, what the facts of the case are; secondly, how the law applies to those facts; thirdly, what parts of an earlier decision can be characterised as the ratio decidendi and what is obiter dicta, and finally, where did the earlier court stand in the hierarchy of the courts? A consideration of these questions gives rise to the decision – judgment. The judgment contains an explanation of legal principles on which the decision is made. This is called the ratio decidendi and it is this part of the judgment that forms a binding precedent. These legal principles are explained below.


A judgment will always include an account of the reasons for each judge’s decision. This is called the ratio decidendi or simply ratio; literally, meaning “the reason for deciding”. It is the principle or rule of law upon which a courts decision is found [5] . More fully, it is defined as the proposition of law which decides the case in the light or context of the material facts.


If a judgment includes a proposition of law that is not necessary to the decision in a case, it is an obiter dictum, which in Latin means “means things said by the way” . They are often discussions of hypothetical situations, and therefore do not form binding precedents, but are persuasive. Obiter from the Supreme Court and the Court of Appeal are strongly persuasive.

In order to have a clear understanding of the doctrine of precedent, the hierarchy of the courts is central. The decisions of the European Court of Justice, however on matters in respect to community law are binding on all English courts. In theory, it is only the Supreme Court that can overrule its decisions, as well as the decisions of other courts. All other courts must follow the precedent that applies in a particular case.



It made the law more predictable in that earlier decisions formed a rule to be followed in similar cases. Again, litigants can assume that like cases will be treated alike.


Precedents are becoming more flexible in order to meet the needs of society. An instance is seen in the Supreme Court announcing in 1966 its judges would no longer be bound by their decisions.


The utilisation of the doctrine of precedent shows the application of the law to various circumstances.



The fact that binding precedents must be followed unless the facts of the case are different can lead to judges making minute distinctions between the facts of a previous case and the case before them, so that they can differentiate a precedent they consider inappropriate.


The rules of judicial precedent means that judges will follow a binding precedent even where they think it is a bad law, or inappropriate.


It involves the application of events which happened before the present case. This may be considered unfair, since if a case changes the law, the parties concerned in that case could not have known what the law was before they acted.


In deciding a case, a judge could follow a precedent, distinguish or overrule it. A judge distinguishes a precedent where the facts of the case before the judge are significantly different from an earlier case. As such, the merits of predictability can be lost if too many distinctions are made this may make it impossible to work out which precedent to follow.

Finally, precedents do not always spell out what should be done in a case. For instance, when a judge is faced with a new situation that has no previous decision. Again, precedents are usually confusing in situations where judges are faced with two binding precedents.


Through this coursework, it has been possible to demonstrate what is meant by the common law and the doctrine of precedent, taking note of their strengths and weaknesses. It should however be understood that no principle of law offers the best approach to be adopted, and as such, both the strengths and weaknesses that have been perceived from the common law and precedent should treated lightly.