A case is an argument between two or more parties that is settled by a court. The parties can be people, the government, or companies. Cases can be either civil or criminal. Cases are brought in both state and federal courts. Cases begin at the trial court level (also called the district court). If one of the parties disagrees with the decision, the party can try to go to court again. This is called appealing a decision. Appellate courts are the ones that take a second look. Appellate courts and sometimes trial courts publish their decisions, which are often available online.