FBI warning about military interrogation methods at Guantánamo in 2003

The 2003 Federal Bureau of Investigation warning about military interrogation methods at Guantánamo Bay detention camp documented an internal challenge to the military’s approach just as control of Mohamedou Ould Slahi’s questioning shifted from federal agents to military interrogators. It warned that forceful methods and harsh exposure were being used on detainees, and that their legal status did not remove the government’s obligation to respect limits on interrogation.

The change in control

A few days after military personnel took over Mohamedou Ould Slahi’s interrogation in late May 2003, a Federal Bureau of Investigation agent circulated a report recording concerns about military methods. The transition came amid a broader disagreement at the camp: military interrogators and Federal Bureau of Investigation and Criminal Investigation Task Force agents had clashed over how detainees should be questioned. The warning therefore arose not in isolation but at a moment when responsibility for Slahi’s questioning and the conduct of interrogations more generally was changing hands.

The reported methods and legal concern

The report described aggressive practices that included physical force, stripping detainees, and exposing them to cold, with one reported case of hypothermia. On July 1, 2003, about a month after the military assumed control of Slahi’s interrogation, Federal Bureau of Investigation assistant general counsel Spike Bowman sent an email to senior Bureau officials alerting them to such practices. He argued that the methods would be unlawful if used on prisoners of war or criminal prisoners, and that the absence of that formal designation could not itself authorize conduct barred in those settings. His concern was thus both practical and legal: the government’s classification of detainees did not, in his view, settle what treatment was permissible.

Institutional responsibility

Bowman also worried that the Federal Bureau of Investigation could be held responsible by association. He sought advice about referring the matter to the Inspector General of the U.S. Department of Defense and indicated that, were he still on active duty, he would consider referral a duty. The exchange reveals an effort to decide whether an internal warning should become a formal oversight matter, even as the military’s interrogation program was operating within a contested legal framework.

Later records and significance

The warning sits alongside later records that illuminate the setting in which Slahi was questioned. Investigators gained access to military interrogation files, including the Special Projects Team’s daily memoranda, which recorded both what was said and how information was obtained. Though the files remained classified, the U.S. Senate Armed Services Committee and the U.S. Department of Justice later summarized them, documenting a special interrogation of Slahi that followed a separate, approved plan. Those later reviews provide evidence about the broader interrogation practices at issue; they do not erase the importance of the earlier warning. The 2003 episode shows that concerns about legality and institutional complicity were raised within the government while military methods were being used, rather than emerging only in later public investigations.