The way that people can become judges and what they have to do in court depends on each country. In some countries, judges must work with the law (often as a lawyer) for a number of years before they can "sit as a judge" in a . In some countries, especially the United States, there might be a jury in the courtroom that decides if someone is guilty or not guilty of breaking a law. A jury can also decide if someone must pay money to someone else and how much they have to pay. If there is a jury, the judge has the job of making sure the person taken to court is treated in a fair way.
In other countries, for example in many countries in Europe, the judge makes the decision of whether or not a person is guilty.
Some courts will have more than one judge, for example three judges. For important decisions about the laws of a country, countries may have a supreme court or high court with many (nine or more) judges in it. In the United States, judges on a supreme court are called justices and are lead by a chief justice.
In many countries, judges wear special clothes while being in court. Oftentimes this is a blackor . Supreme or high court judges often wear a kind of red cloak. Judges in some countries also wear a special long wig. They also used to put a piece of black material on their head when they sentenced a person to die.
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