<Tr> <Td> <Ul> <Li> </Li> <Li> </Li> <Li> </Li> </Ul> </Td> </Tr> <Ul> <Li> </Li> <Li> </Li> <Li> </Li> </Ul> <P> The United States district courts are the general trial courts of the United States federal court system . Both civil and criminal cases are filed in the district court, which is a court of law, equity, and admiralty . There is a United States bankruptcy court associated with each United States district court . Each federal judicial district has at least one courthouse, and many districts have more than one . The formal name of a district court is "the United States District Court for" the name of the district--for example, the United States District Court for the Eastern District of Missouri . </P> <P> In contrast to the Supreme Court, which was established by Article III of the Constitution, the district courts were established by Congress . There is no constitutional requirement that district courts exist at all . Indeed, after the ratification of the Constitution, some opponents of a strong federal judiciary urged that, outside jurisdictions under direct federal control like Washington, D.C. and the territories, the federal court system be limited to the Supreme Court, which would hear appeals from state courts . This view did not prevail, however, and the first Congress created the district court system that is still in place today . </P>

What kinds of cases are heard in district court