On 22 December 2006, high court judge Royce C. Lamberth ruled that Iran and Hezbollah were directly and personally responsible for the attack, stating that the leading experts on Hezbollah presented "overwhelming" evidence of the group's involvement and that six captured Hezbollah agents detailed the role of Iranian intelligence and military officials in providing money, explosives, arms and weapons, plans, and maps. This decision was reached as a default judgment, however, in which the Iranian government was not represented in court, because they chose not to challenge the allegations in a U.S. courtroom.