The State Prosecution Service of Spain (Ministerio Fiscal) is a constitutional body integrated with functional autonomy into the country's judiciary. It is tasked with promoting the administration of justice in defense of the rule of law, protecting citizens' rights, safeguarding the public interest, and ensuring the independence of the courts. Officially established under the Organic Act of the Judiciary of 1870, the institution was later reorganized and granted constitutional status under Article 124 of the 1978 Spanish Constitution.