Details have emerged of the alleged plot which led Australian police to arrest 17 people on terrorism charges in Sydney and Melbourne on Tuesday.
At least 17 people were arrested in Tuesday's raids
Prosecutors told a court hearing a bail application for one of the men, Mirsad Mulahalilovic, that the Sydney group was gathering material to make a bomb.
Mr Mulahalilovic bought plastic piping and chemicals were found at his house which could be used in bombs.
But his defence lawyer said the charges were based on "marginal evidence".
Phillip Boulten said there was no suggestion the materials would be used for any terrorism related activities.
The Sydney court refused bail for Mr Mulahalilovic, a refugee from Bosnia who appeared via video link.
The magistrate said the alleged activities could have created "great disturbance inside this country."
SYDNEY: Eight men charged with planning a terrorist act
Omar Baladjam also charged with attempted murder for firing at police
At least two suspects alleged to have had militant training in Pakistan
MELBOURNE: Nine arrested on charges of being members of a terrorist group
Abu Bakr alleged to be overall leader
Another suspect, arrested in Sydney, to be extradited to Melbourne
Mr Mulahalilovic and seven other men arrested in Sydney are now due to appear in court on 5 December.
The court also ordered that another man, Izzydeen Atik, who was arrested on Thursday in Sydney, be extradited to Melbourne.
Mr Atik was charged with being part of an organisation he knew to be a terrorist group.
Defence lawyers said the suspects arrested in Sydney would probably plead innocent.
Adam Houda accused the authorities of holding his clients in "shameful" conditions.
Mr Boulten said Mr Mulahalilovic was being kept in solitary confinement, his hands and legs were shackled, and he had limited access to his family.
Mr Boulten also said Mr Mulahalilovic was being dressed in orange overalls to emulate the conditions at the US detention centre at Guantanamo Bay.
The authorities have said the raids in Melbourne and Sydney prevented a catastrophic attack on Australia. No details of any potential targets have yet been released.