A Spanish court has taken the first steps toward opening a criminal investigation into allegations that six former high-level Bush administration officials violated international law by providing the legal framework to justify the torture of prisoners at Guantanamo Bay, Cuba, an official close to the case said.
The case, against the former U.S. attorney general, Alberto R. Gonzales, and others, was sent to the prosecutor's office for review by Baltasar Garzon, the crusading investigative judge who ordered the arrest of Augusto Pinochet, the former Chilean dictator. The official said that it was "highly probable" that the case would go forward and that it could lead to arrest warrants.
The move represents a step toward ascertaining the legal accountability of top officials in the former administration of President George W. Bush for allegations of torture and the mistreatment of prisoners in the campaign against terrorism. But some American experts said that even if warrants were issued their significance could be more symbolic than practical, and that it was a near certainty that the warrants would not lead to arrests if the officials did not leave the United States.
The complaint under review also names John C. Yoo, the former U.S. Justice Department lawyer who wrote secret legal opinions saying the president had the authority to circumvent the Geneva Conventions, and Douglas J. Feith, the former under secretary of defense for policy.
Most of the officials cited in the complaint declined to comment on the allegations or could not be reached Saturday. However, their defenders have said their legal analyses and policy work on interrogation practices, conducted under great pressure after the 2001 terrorist attacks, are now being unfairly second-guessed after many years without a terrorist attack on the United States.
The court case was not entirely unexpected, as several human- rights groups have been asking judges in different countries to indict Bush administration officials. One group, the Center for Constitutional Rights, had asked a German prosecutor for such an indictment, but the prosecutor declined.
Judge Garzon, however, has built an international reputation by bringing high-profile cases against human-rights violators as well as international terrorist networks like Al Qaeda. The arrest warrant for General Pinochet led to his detention in Britain, although he never faced a trial. The judge has also been outspoken about the treatment of detainees at Guantanamo Bay.
Spain can claim jurisdiction in the case because five citizens or residents of Spain who were prisoners at Guantanamo Bay have said they were tortured there. The five had been indicted in Spain, but their cases were dismissed after the Spanish Supreme Court ruled that evidence obtained under torture was not admissible.
The 98-page complaint, a copy of which was obtained by The New York Times, is based on the Geneva Conventions and the 1984 Convention Against Torture, which is binding on 145 countries, including Spain and the United States. Countries that are party to the torture convention have the authority to investigate torture cases, especially when a citizen has been abused.
The complaint was prepared by Spanish lawyers, with help from experts in the United States and Europe, and filed by a Spanish human rights group, the Association for the Dignity of Prisoners.
The National Court in Madrid, which specializes in international crimes, assigned the case to Judge Garzon. His acceptance of the case and referral of it to the prosecutor made it likely that a criminal investigation would follow, the official said.
Even so, arrest warrants, if they are issued, would still be months away.
Gonzalo Boye, the Madrid lawyer who filed the complaint, said that the six Americans cited had had well-documented roles in approving illegal interrogation techniques, redefining torture and abandoning the definition set by the 1984 Torture Convention.
Secret memorandums by Mr. Yoo and other top administration lawyers helped clear the way for aggressive policies like waterboarding and other harsh interrogation techniques, which the C.I.A. director, the attorney general and other American officials have said amount to torture.