United States District Court for the District of Puerto Rico
The United States District Court for the District of Puerto Rico (in case citations, D.P.R.; ) is the federal district court whose jurisdiction comprises the Commonwealth of Puerto Rico. The court is based in San Juan. The main building is the Clemente Ruiz Nazario United States Courthouse located in the Hato Rey district of San Juan. The magistrate judges are located in the adjacent Federico Degetau Federal Building, and several senior district judges hold court at the Jose V. Toledo Federal Building and U.S. Courthouse in Old San Juan. The old  courthouse also houses the U.S. Bankruptcy Court. Most appeals from this court are heard by the United States Court of Appeals for the First Circuit, which is headquartered in Boston but hears appeals at the Old San Juan courthouse for two sessions each year. Patent claims as well as claims against the U.S. government under the Tucker Act are appealed to the Federal Circuit. The current United States Attorney is W. Stephen Muldrow. Scope and relevance. The United States first established a federal court in Puerto Rico under the Foraker Act of 1900. This court was a territorial court, operating  within what the Supreme Court would soon define in the Insular Cases as an unincorporated territory of the United States. As such, the court was established under Article IV rather than Article III of the United States Constitution. The Supreme Court of the United States discussed the nature of the court in "Balzac v. Porto Rico", 258 U.S. 298 (1922). Because the court was a territorial court rather than a full-fledged District Court, its judges did not enjoy Article III protections such as life tenure. The District Court in Puerto Rico continued to be an Article IV court even  after Puerto Rico attained its commonwealth status. However, in 1966, the U.S. Congress conferred life tenure on the federal judges of Puerto Rico, transforming the court into a full-fledged Article III district court with the same status as the other United States District Courts throughout the country. The congressional report on the bill making this change described the change of status as being "appropriate in light of the court's caseload and the conferral of Commonwealth status on Puerto Rico," and also explained: See 1966 U.S.C.C.A.N. 2786-90; see also "Examining Bd. of Engineers Architects and Surveyors v. Flores  de Otero", 426 U.S. 572, 595 n.26 (1976) ("The reason given for this [law] was that the Federal District Court in Puerto Rico 'is in its jurisdiction, powers, and responsibilities the same as the U.S. district courts in the (several) states'."). This important change in the federal judicial structure of the island was implemented not as a request of the Commonwealth government, but rather at the repeated request of the Judicial Conference of the United States. See Senate Report No. 1504, 1966 U.S.C.C.A.N. 2786-90. No similar law has been passed for the three insular territories that still have Article  IV status, though there have been calls from time to time that these judges also deserve the protection of life tenure. Current judges. <onlyinclude> </onlyinclude> Article IV judges. Judges who served on the Court from 1900 to 1966, before it became an Article III court, were: During this period, judges for the District of Puerto Rico were appointed by the president for 4-year terms until 1938, and thereafter for 8-year terms. The court statutorily comprised a single judge until 1961, when a second judgeship was authorized by Congress, although the position was not actually  filled until 1965. Until the 1950s, when the District Court judgeship was vacant, when the judge was away from Puerto Rico, or when the court's docket became overly backlogged, sitting judges of the Supreme Court of Puerto Rico were designated to act as judges of the federal court. Judge Ruiz-Nazario, appointed by President Harry Truman in 1952, was the first Puerto Rican to serve as a judge of Puerto Rico's federal court.