Sources of law

Laws are rules for everyone.

They help us live together. Rules can come from many places.

Some rules are written down by leaders. These are called laws. They can be in big books.

People use them to stay fair.

Other rules come from old ways. These are called customs. People follow them for a long time. They help show what is right.

Sometimes, judges make rules too. They look at old cases. They use those cases to help now. This helps the law change.

Rules also come from many lands. These are called international laws. They help different countries work together well.

Laws are rules that help a state rule its land. We call the places where laws start "sources of law."

Some laws are written by leaders. This is called legislation. A group called a legislature makes these rules. They can make new laws or change old ones. In the UK, the Parliament makes these laws. In many places, a constitution is the main source of law.

Other laws come from judges. This is called case law or precedent. Judges look at old cases to help them decide new ones. This helps the law change over time. In some places, this is called common law.

Some rules come from old traditions. These are called customs. If people follow a way for a very long time, it can become a law. Laws can also come from religion. These come from sacred texts or religious rules.

Finally, countries can make rules together. These are international laws. They use treaties to help different lands work together.

Laws are the rules that help a country govern its land. We call the places where these rules begin "sources of law."

The idea is very old. A man named Cicero used the word "fountain" to describe law in Rome. Today, a source of law is anything that can create or change a rule. Some people think a source is just the person in power. Others say it is the reason why a law is valid. Legal experts often group these sources into two main types. Formal sources are the things that actually make the law, like statutes or contracts. Material sources are the places where you can find those laws, like a newspaper or an official bulletin.

Law can work in many different ways. Some laws come from the actions of people. This is called legislation. A group called a legislature writes these rules. They can make new laws or change old ones. In the United Kingdom, the Westminster Parliament does this. In many nations, a written constitution is the most important source. However, a legislature can sometimes change a constitution if they follow special rules.

Other laws come from judges. This is called case law or judicial precedent. Judges look at how similar cases were decided in the past. This helps them make fair choices today. This system is often called common law. It allows the law to grow and change as the world changes.

History shows us that laws come from many different places. Long ago, some laws were not even written down. These were called customs. If people followed a tradition for a very long time, it could become a law. Some laws also come from religious practices. These rules come from sacred texts or religious doctrines. In the past, some leaders believed in the "divine right of kings." This meant they thought God gave them the power to rule. Over many years, new ideas like human rights and civil rights became important sources of law. Even after World War II, people learned that following orders was not an excuse for breaking universal standards of right and wrong.

Different parts of the world use different legal systems.

Some places use a "civil law" system. In these systems, people rely heavily on written legal codes. For example, the state of Louisiana uses a civil code. Other places use a "common law" system. Some countries even mix these styles together. Scotland and South Africa are examples of "hybrid" systems. They use a mix of common law, civil law, and tribal law. There is also international law. This is when different countries make agreements called treaties. For a treaty to work, many countries must sign it. The Maritime Labour Convention is an example. It started working in 2013 after many countries signed it.

Law also connects different groups of people and nations. The European Union is a special example of this. When nations join the EU, they adopt many shared rules. These rules are made by groups in Brussels. These groups include the European Commission and the European Parliament. They work together to make decisions that affect many countries. In England, there is also something called "equity." This is a special type of law that helps make things fair. It was once handled by a specific group called the Court of Chancery. Today, the law continues to be a living thing. It moves from old traditions to new rules made by modern governments.

Sources of law are the origins of the binding rules used to govern a state. These rules allow a territory to function and maintain order. The concept is quite ancient. In Rome, the thinker Cicero used the word "fons," meaning fountain, as a metaphor for law. Technically, a source of law is anything that can create, change, or cancel a legal right. Some experts define a source as the sovereign power that gives a law its validity. Others view a source as the underlying premise used in legal reasoning.

Legal theory often divides these origins into formal and material sources. Formal sources are the actual mechanisms that create law. These include statutes, which are written laws, and case law, which comes from court decisions. Material sources are the physical or digital places where formal laws are found. Examples include official government gazettes, newspapers, or public deeds. Some theorists even use the four Aristotelian causes to expand this idea. They suggest "efficient" sources include human will or intellect, while "final" sources include the specific goals of a policy or constitution.

Legal systems vary significantly across the globe. Civil law systems rely heavily on comprehensive legal codes. For instance, the Louisiana Civil Code lists custom and legislation as its primary sources. In contrast, common law systems use a combination of different sources to form the law. Some nations use a hybrid approach. Scotland and South Africa are examples of this. South Africa uses an amalgam of common law, civil law, and tribal law. Most nations have a central national legislature that acts as the ultimate source of law.

Legislation is often the most tangible and enforceable source of law. A legislature is a body of people authorized to make laws. They can use their power to regulate, authorize, or restrict certain actions. In the United Kingdom, the Westminster Parliament is the central legislative body. While a written constitution may seem like the highest authority, a legislature can often amend it by following specific rules. In many places, the executive branch carries out the law, while the judicial branch interprets it. This separation of powers helps ensure that no single group has total control.

Judicial precedent, also known as case law, is another vital source. This is closely tied to the doctrine of stare decisis. This Latin term means that judges should follow the decisions made in previous, similar cases. This creates a sense of consistency in the legal system. When no written law exists for a new situation, judges may rely on their own sense of right and wrong. In England, a special branch called equity was developed to ensure fairness. Equity can sometimes prevail over common law to provide specific remedies, such as those used in trusts or charities.

International law serves as a source of rules that connect different nations. This is primarily done through conventions and treaties. For a treaty to become binding, it usually must be ratified by a country's national parliament. The Maritime Labour Convention is a notable example. It entered into force on August 20, 2013. This happened after 30 countries ratified it, representing over 33 percent of the world's gross tonnage of ships. Some countries are "monist," meaning they adopt international law automatically. Others are "dualist," meaning they must turn the treaty into a national statute first.

The European Union provides a unique example of shared legal sources. Member nations adopt the "acquis communautaire," which is the accumulated body of EU law. This includes treaties, regulations, and decisions made in Brussels. These rules are enforced by the Court of Justice of the European Union in Luxembourg. This system shows how law can move beyond a single nation to create a broader regional framework. Whether through ancient customs, modern statutes, or international treaties, the sources of law continue to shape how societies organize themselves.