The Australian father accused of training pilots for the Chinese military has been transferred to a maximum-security NSW jail without explanation, his supporters say. Daniel Duggan, a 54-year-old former US marine, is due to face a Sydney court on Monday as he fights extradition. That appearance comes a week after he was moved from Silverwater remand centre to Lithgow’s maximum security prison. Duggan’s supporters say the conditions he is under in Lithgow’s maximum security prison are inhumane.