Law is a set of rules that governs people and society. It shapes politics, economics, and history. It also serves as a mediator of human relationships.

Usually, the practice of law is under the supervision of a government or other regulating body. However, private individuals can create contracts that are legally binding.

There are many types of laws. Examples include immigration law, family law, and consumer rights. Other laws involve issues of money, housing, and debt.

Several legal issues can be heard in state and federal courts. There are also legal issues that occur in the workplace. Often, parties in a suit agree to settle the difference without going to court.

In a trial, a plaintiff (the person bringing the lawsuit) will accuse the defendant of a wrong. This complaint is then presented to a jury, who will decide whether the defendant is guilty.

After the jury makes its decision, a judge may make a judgment. The judgment determines the rights of the parties in a suit.

In common law legal systems, judges explicitly acknowledge the decisions of courts as “law.” This is done by using the doctrine of precedent.

The doctrine of precedent states that the decisions of a court will ordinarily be followed by other courts in the same jurisdiction. If a party wishes to challenge a precedent, that party can request that the lower court overrule the previous decision. Alternatively, the defendant can request that the case be re-heard.