The judiciary of Portugal is a system of courts that together constitute one of the four organs of Sovereignty as defined by the Portuguese Constitution. The courts are independent from the other three Portuguese organs of Sovereignty (President of the Republic, Government and Assembly of the Republic). The Portuguese courts are divided by four independent orders, each of which corresponds to the separate Constitutional, Judicial, Administrative and Auditors jurisdictions. The public prosecution and the representation of the State before the courts is assured by an independent body of magistrates, known as Public Ministry. The Ministry of Justice is the Government department responsible for the administration of the Judiciary system. Orders of courts The Portuguese judiciary system is not unitary, but it is instead divided in four independent categories or orders of courts: Constitutional, Judicial, Administrative and Auditors. Each order contains their own structure of courts. The Constitutional and Auditors orders include a single court each one, while the other two orders include a plurality of hierarchical organized courts. Until 2003, a fifth order of courts existed, this being the Military Jurisdiction. A higher court of appeal exists to appreciate and judge the conflicts of jurisdiction between the Judicial and Administrative orders of courts, this being the Conflicts Court (). The Conflicts Court is headed by the president of the Supreme Administrative Court, including also other three judges of this court and three judges of the Supreme Court of Justice. Constitutional Court The Constitutional Court (Tribunal Constitucional) is the sole court in the Constitutional jurisdiction. It is a special court, mainly tasked with reviewing the constitutionality of newly approved laws, but it also has important powers related to the President of the Republic, the political parties and referendums. The judges of the Constitutional Court are independent from the other branches of government, such as the executive or the legislature, and cannot be impeached. The court is installed in the Ratton Palace in Lisbon. Judicial courts The Judicial order (Ordem Judicial) is the first category of common courts (excluding the Constitutional Court), forming a proper hierarchical structure that has the Supreme Court of Justice (Supremo Tribunal de Justiça) in Lisbon as its superior body. This order also includes the five intermediate level courts called Relação (Guimarães, Oporto, Coimbra, Lisbon and Évora) and the judicial courts of first instance. The judicial courts of first instance can be courts of generic competence or courts