Mohamedou Ould Slahi—Stuart Couch relationship

The relationship between Mohamedou Ould Slahi and Stuart Couch was defined by a reversal: Couch entered Slahi’s case as a military prosecutor hoping to pursue people connected to the September 11 attacks, then withdrew after investigating the methods used to question him. Couch’s decision did not resolve Slahi’s legal position, but it exposed the conflict between prosecuting a detainee and relying on intelligence produced through abusive treatment.

Assignment and personal stakes

In the fall of 2003, Stuart Couch was assigned Slahi’s case and received intelligence reports from Ramzi bin al-Shibh. The assignment carried a personal weight. Couch’s close friend Michael Horrocks, a fellow Marine refueling-tanker pilot, had been the copilot on the United Airlines flight used by the September 11 hijackers to strike the South Tower of the World Trade Center. The attacks had drawn Couch back to active service, and he joined the Guantánamo military commission prosecution team hoping to pursue those responsible.

That background helps explain the initial direction of the relationship without making it the whole of Couch’s account. His work on Slahi’s case brought him information from a detainee whose intelligence reports were already being described by military interrogators as the most successful interrogation at Guantánamo. The reports listed people associated with al-Qaeda, but did not describe the conditions under which Slahi had supplied information. For Couch, the gap between the apparent value of the intelligence and the absence of any account of how it had been obtained became a central problem.

From suspicion to investigation

Couch’s suspicions began before he had documentary proof. On his first visit to the base, he saw another prisoner shackled in an interrogation booth, rocking as a strobe light flashed and heavy metal music played. He recognized the techniques from a week of training that he himself had undergone as a Marine pilot to prepare airmen for capture and torture. He had also been told that Slahi was on Special Projects, a designation that heightened his concern about the circumstances behind the reports.

The suspicions acquired a documentary basis when an investigator assigned to Couch’s case, an agent from the Naval Criminal Investigative Service, gained access to interrogators’ files. These included daily memoranda prepared by the Special Projects Team, documenting both the information elicited in each session and the means used to obtain it. The underlying files remained classified, but the Senate Armed Services Committee’s 2008 inquiry and the Justice Department’s review of interrogations in Guantánamo, Afghanistan, and Iraq later summarized their contents. Those investigations described a second, Rumsfeld-approved special interrogation plan and found that its course substantially matched Slahi’s account in Guantánamo Diary.

Records that changed the case

Two documents discovered by Couch in early 2004 were especially consequential. One was a fabricated State Department letter presented to Slahi in August 2003. It falsely claimed that his mother had been detained, would be interrogated, and might be transferred to Guantánamo if she did not cooperate. The letter invoked Slahi’s close relationship with his mother as a means of applying pressure. Its existence connected the interrogation plan not simply to questioning, but to a deliberate effort to exploit a family bond.

The second document was an October 17, 2003, e-mail exchange between an interrogator and a military psychiatrist. The interrogator reported that Slahi was hearing voices and worried that this was abnormal. The psychiatrist responded that sensory deprivation could cause hallucinations. The exchange linked Slahi’s reported experiences to the conditions of his detention, rather than treating them as evidence that could be separated from those conditions. Together with the interrogation records and the public investigations, the letter and e-mail convinced Couch that Slahi had been tortured.

Withdrawal from prosecution

Couch later described reaching his decision during a church service, after months spent reviewing information and struggling with what it meant. During a baptism, the congregation affirmed the dignity of every human being and the pursuit of peace and justice. Couch understood that he could not continue with the prosecution while accepting evidence obtained in the manner revealed by the documents. He withdrew from Slahi’s case and refused to proceed with an effort to try him before a military commission.

The decision marked a sharp change in Couch’s role: the prosecutor who had returned to service wanting to pursue those responsible for the attacks became unwilling to build a case on intelligence extracted through torture. His withdrawal was not based on a claim that Slahi knew no one in al-Qaeda. Rather, Couch’s later assessment distinguished association and knowledge from participation in an attack. He said that Slahi’s intelligence reports did not implicate Slahi in an overt act in the al-Qaeda conspiracy to attack the United States on September 11. The only apparent self-implication was Slahi’s knowledge of people connected to the organization.

Aftermath and significance

No charge sheet was ever drawn up against Slahi at Guantánamo, and no military commission defense attorney was appointed to his case. The account does not establish that Couch’s withdrawal alone caused the absence of charges; it does show that the prosecution lost a participant unwilling to rely on the evidence he had examined. Stuart Couch’s decision therefore became a consequential instance of scrutiny from within the prosecution system, grounded in the interrogation records and the investigative reports rather than in an abstract objection to military commissions.

The later effort to find a charge further illustrates the weakness of the case. In 2005, chief prosecutor Morris Davis sought a comparable deal for another prisoner who would not accept a plea bargain unless Slahi received one too. Davis said that this required finding something Slahi could be charged with, and that doing so proved difficult. Meanwhile, intelligence reports naming people Slahi knew could be treated as a kind of proof that he belonged among them, even though Couch’s account emphasized that the reports showed no overt act by Slahi in the September 11 conspiracy. Their relationship thus illuminates the difference between possessing information about a network and demonstrating criminal participation—and the danger of treating intelligence produced under abusive conditions as self-validating evidence.