The keyword for American Court system is Dual-court system which means there are two independent court systems. One is federal courts at the central level and another is the state courts at the local level. Both operate in an independent manner with coordination with the respective executive and legislative areas. The system of dual court is existent from the very beginning, right from the time of “The Thirteen colonies”. The separation of powers here allows the checks and balances to operate. The jurisdiction of the federal courts and the jurisdiction of state courts are different.