Courts make up the judicial branch.
They interpret laws and decide how the laws should be applied. People or businesses may file a civil case when they feel they ve been hurt by someone else s negligence. If your doctor made a mistake and treated you for the wrong disease and that's why your arm had to be amputated, you might sue him for money for damages. Court decisions are sometimes made by judges and sometimes made by juries. Juries are groups of average citizens who are selected to weigh the evidence and issue verdicts.