The Justice Department has admitted for the first time that the FBI used a secret search warrant to enter the home of Brandon Mayfield a lawyer from Portland Oregon while it was investigating the March 2004 train bombings in Madrid. Wth the search warrant FBI agents secretly entered the house of Mayfield where they took over 300 photographs and seized material including DNA samples and fingerprints. Based in part on that search, the FBI mistakenly linked Mayfield — who is a convert to Islam — to the bombings. He was then arrested and jailed. The FBI claimed his fingerprints matched a set of fingerprints on a bag of detonators connected to the bombing in Madrid. Mayfield was freed after two weeks when the FBI realized they made a mistake matching the fingerprints.