The trial is scheduled to begin June 5, 2028, 18 months later than the January 2027 start that prosecutors requested. The additional time is needed to resolve pretrial disputes, including disagreements about what evidence can be presented at trial, according to the ruling by Air Force Lt. Colonel Michael A. Schrama.

After his capture by US and Pakistani agents in 2003, Khalid Sheikh Mohammed spent three years in secret CIA prisons in Central Europe and was later transferred to the US detention camp at Guantánamo Bay, Cuba, in 2006.