Yee will now appear before a military court on Monday

Army Captain James Yee - or Yousef Yee - is charged with security violations at the US camp for terror suspects where he served as a Muslim chaplain.

This week's hearing was postponed after classified material was accidentally sent to his lawyer.

Meanwhile the first non-US suspect at the camp has been allowed access to a lawyer, ahead of his military trial.

Captain Yee's hearing before a military tribunal at Fort Benning, Georgia, has been rescheduled for Monday.

Mistake

Captain Yee was arrested on 10 September as he arrived at a naval air station in Florida.

I don't understand how a chaplain is supposed to be on top of what's classified and how to handle it, if the government isn't Eugene Fidell Captain Yee's lawyer

Customs officials became suspicious of documents found in his baggage, officials said.

In October he was charged on two counts of failing to obey orders - specifically, for taking classified material to his home.

Captain Yee's lawyer said that on Tuesday the government sent four people to his office to collect 15 pages of suspect documents which prosecutors had mistakenly sent to him.

"It seems to me that it makes it a lot more difficult to prosecute the case," the lawyer, Eugene Fidell, said.

"I don't understand how a chaplain is supposed to be on top of what's classified and how to handle it, if the government isn't on top of what's classified and how to handle it," he added.

A Chinese-American, Captain Yee converted to Islam while serving in Saudi Arabia following the 1991 Gulf war.

He then left the military and lived in Syria, where he learned Islamic practice, before rejoining the army and being appointed to work with detainees at the Guantanamo Bay detention centre.

Legal help

Around 660 al-Qaeda suspects and alleged members of Afghanistan's former Taleban regime are detained at the camp.

Around 660 al-Qaeda and Taleban suspects are held in Guantanamo Bay

Meanwhile the US Defence Department on Wednesday assigned a military layer to defend an Australian suspect held there.

David Hicks, 28, is one of two Australian detainees captured while fighting for the Taliban in Afghanistan in 2001.

He has been named as one of the first six prisoners eligible for trial before a US military commission.

His lawyer is due to visit "in the near future", the Pentagon said.

It is the first time a non-American terror suspect imprisoned at the base in Cuba has been allowed access to a lawyer.

Australian Attorney General Philip Ruddock welcomed the lawyer's appointment.