The United States court system plays a vital role in governing the laws of cities, states, and townships. An intricate and powerful branch of government, local municipal courts are responsible for interpreting city and state laws. Local Municipal courts decide how laws are administered, hear arguments, and interpret the law based on the Constitution of the United States. In order to guarantee checks and balances in government, the United States Constitution divides government into three branches of administration. There is the Executive Branch of government, the President, Vice President, and their Cabinet. The Legislative Branch of government, the congress and the senate, are responsible for creating legislation. The Judicial Branch is an intricate system of courts with varying jurisdictions. The United States Supreme Court serves as the final authority in court cases for the whole country. Appellate courts are the higher authorities in each state. Local municipal courts are considered courts of limited jurisdiction responsible for civil, municipal, and/or traffic matters. Local municipal courts are units of self government in that the majority of cases heard deal with local issues concerning city governance. Local municipal courts hear cases involving transgressions of city and state traffic laws such as DUI offenses, state code and ordinance violations such as building and safety hazards, and traffic matters such as speeding tickets. Most cases on local municipal court dockets involve traffic matters. Minor criminal offenses are often heard in local municipal courts in preliminary hearings that are typically trials leading cases to higher state appellate courts. A court case can transgress from local municipal courts to appellate court to the United States Supreme Court.