The chief military prosecutor at Guantanamo Bay said Thursday that Australia's sole remaining inmate at the isolated facility offered his services to al-Qaida after the Sept. 11 terror attacks against the United States and that there is a strong case against him. David Hicks, a former kangaroo skinner from southern Australia, was captured in Afghanistan by the Northern Alliance during the US-led invasion in late 2001 and transferred exactly five years ago to the US naval base where he is still awaiting trial. The 31-year-old father of two was originally charged with attempted murder, conspiracy to commit war crimes and aiding the enemy, and was selected to face a US military tribunal. But his case thrown into limbo when the US Supreme Court declared the tribunals illegal in June. But Air Force Col. Morris Davis, the chief military prosecutor at Guantanamo, said the US has a strong case against Hicks, who allegedly fought with Muslim militants in Kosovo and Kashmir before traveling to Afghanistan to train with al-Qaida.