Urbina was nominated by President Bill Clinton on March 22, 1994, to a seat on the United States District Court for the District of Columbia vacated by Judge Aubrey E. Robinson Jr. He was confirmed by the Senate on June 15, 1994, and received commission on June 16, 1994. He assumed senior status on January 31, 2011 and retired on May 31, 2012.
Notable cases
''Omar v. Harvey''
Urbina was assigned as the judge in Omar v. Harvey, in which Shawqi Ahmad Omar, an American citizen, captured and detained in Iraq by United States military forces operating as part of the Multi-National Force-Iraq, filed a petition for a writ of habeas corpus preventing the U.S. military from transferring him from U.S. military custody at Camp Cropper into the custody of Iraqi authorities for trial on terrorism charges in the Central Criminal Court of Iraq. Urbina issued an ex partetemporary restraining order requiring that Omar "not be removed from United States custody" and later convered the order into a preliminary injunction. The government appealed, and the D.C. Circuit, in a 2-1 decision, affirmed that the District Court had habeas jurisdiction under the U.S. Supreme Court precedent in Hirota v. MacArthur and that Omar's case could be reviewed because he had not yet been convicted by a foreign court. The case ultimately reached the U.S. Supreme Court, which heard this matter together with Munaf v. Geren, 553 U.S. 674. The Court unanimously affirmed Judge Urbina's conclusion that the habeas corpus statute, 28 U.S.C. § 2241, extends to U.S. citizens held overseas by American forces subject to an American chain of command, even if acting as part of a multinational coalition, but also found that habeas corpus provided the petitioners with no relief because "habeas corpus does not require the United States to shelter such fugitives from the criminal justice system of the sovereign with authority to prosecute them."
On December 16, 2009, Urbina ordered Guantanamo captive "Saeed Hatim" to be released. According to Carol Rosenberg, writing in the Miami Herald Urbina's release order was sealed, and it "brought the so-called habeas corpus scorecard to 32 losses and nine victories by the Pentagon of detainee challenges from Guantánamo Bay, Cuba." Dean Boyd, a Department of Justice spokesman, told Rosenberg the Government was reviewing its options in how to react to the ruling.
On December 31, 2009, a month before five Blackwater Worldwide security guards implicated in the September 2007, Nisour Square, Baghdad, shooting incident were to go on trial, Urbina dismissed the case. Urbina said that the prosecutors improperly relied upon statements the guards gave to State Department investigators. The guards were required to make the statements if they wanted to keep their jobs—thus making them inadmissible under the Fifth Amendment. The immunity issue was a problem that lawyers for the government anticipated as long as a year ago when they briefed Congress on the matter. Judge Urbina dismissed the indictment of the five men who pleaded not guilty to voluntary manslaughter and firearms violations: Paul Slough, Evan Liberty, Dustin Heard, Donald Ball and Nicholas Slatten. In 2011, a federal appeals court overruled Urbina, reinstated the charges against four out of the five men. In 2014, all four were convicted. Dozens of Iraqis, including the estates of some of the victims allegedly killed by Blackwater employees, filed a separate lawsuit last year alleging that Blackwater employees engaged in indiscriminate killings and beatings. The civil case is still before a Virginia court. Blackwater contractors had been hired to guard US diplomats in Iraq. The guards said insurgents ambushed them in a traffic circle. Prosecutors said the men unleashed an unprovoked attack on civilians using machine guns and grenades. The shooting led to the unraveling of the North Carolina-based company, which since has replaced its management and changed its name to Xe Services.
''Heller v. District of Columbia''
A District of Columbia resident, Dick Anthony Heller filed suit against the District challenging the constitutionality of its laws regulating gun registration and gun restriction. Urbina dismissed Heller v. District of Columbia in 2010 and upheld the constitutionality of the statute. The dismissal was appealed and overturned in a 2-1 vote. The case eventually made its way to the U.S. Supreme Court, which in a 5-4 vote sided with Heller and declare the District's regulations unconstitutional.
''Electronic Privacy Information Center v. U.S. Department of Homeland Security''
The Transportation Security Administration has taken several thousand images of individuals passing through the Full Body Scanner to demonstrate its effectiveness to TSA employees. The EPIC sued the DHS for the release of the images. Urbina sided with the TSA, arguing that a release of the images would threaten national security.
