GUANTANAMO BAY NAVAL BASE, Cuba — Three of the five men charged with plotting the Sept. 11, 2001, attacks skipped their military tribunal hearing Tuesday after a judge ruled the men could not be forced to attend the session.
Khalid Sheikh Mohammed, the self-professed 9/11 mastermind, was absent as attorneys delved into a dense debate on legal motions, including rules for handling classified evidence at trial.
Mohammed was taken from his cell at the US base in Cuba to a holding cell outside the courtroom, then chose to boycott at the last minute, said a Navy officer whose name was not released by the court for security reasons.
Mohammed, who has previously said he conceived and orchestrated the Sept. 11 attacks, gave no reason for wanting to sit out the hearing but on Monday dismissed the military tribunal with scorn, saying ‘‘I don’t think there is any justice in this court.’’
Authorities have portrayed the other defendants as Mohammed’s underlings, who provided logistical and other help to the Sept. 11 hijackers.
All five face the same charges, which include terrorism and murder, in what is considered one of the most significant terror prosecutions in US history. They all could get the death penalty if convicted at a trial that is at least a year away.
Saudi defendant Mustafa Ahmad al-Hawsawi and Pakistani national Ali Abd al-Aziz Ali, a nephew of Mohammed, also chose to boycott the hearing. Neither provided any reason for their absence but a lawyer for al-Aziz Ali had said on Monday that his client’s father had recently died in Kuwait and he was grieving for him.
Those who showed up in court, for the second day in a weeklong pretrial hearing, were Walid bin Attash, a Yemeni who grew up in Saudi Arabia, and Ramzi Binalshibh, another Yemeni, who was originally chosen to be one of the hijackers but couldn’t get a US visa to enter the country.
The judge presiding over the case, Army Colonel James Pohl, ruled Monday over prosecutors’ objections that the defendants have the right to be absent from this week’s hearing.
But Pohl did not rule out requiring they attend future hearings and said they must attend their trial before a jury of military officers.
The chief prosecutor, Army Brigadier General Mark Martins, had argued that the rules for the special wartime tribunals known as military commissions require defendants to attend all court sessions.
Prosecutors also said in court papers that their presence was required to ensure that the proceedings are viewed as legitimate.
But lawyers for the men said the threat of forcible removal from their cells would be psychologically damaging for men who had been brutalized while held by the CIA in secret overseas prisons before being taken to Guantanamo in September 2006.
The judge also began hearing arguments Tuesday on a protective order, a set of rules for handling classified evidence that the defense and other critics insist are overly broad.
Protective orders are standard in civilian and military trials, and prosecutors said the one proposed for the Sept. 11 trial is necessary to prevent the release of classified secrets.