The Australian government will not make any representations to the British home secretary after a UK court approved the extradition of whistleblower Julian Assange to the US.
A British court has sent Mr Assange's extradition order to Home Secretary Priti Patel, but the whistleblower can try to challenge the decision by judicial review if signed.
Finance Minister Simon Birmingham said the government maintained confidence in the UK's justice system.
"We trust the independence and integrity of the UK justice system. Our expectation is that, as always, it operates in the proper and transparent and independent way," he told the ABC.
"It, of course, has appeal processes built into it as well. This is the legal system upon which our own has been built on and established and we have confidence in the process."
Labor foreign affairs spokeswoman Penny Wong said it was ultimately a decision for the UK home secretary.
"I do understand why not only Mr Assange's personal supporters but many Australians more generally are worried about this. It has dragged on a long time," she told the ABC.
"As an Australian citizen, he is entitled to consular assistance. We also expect the government to keep seeking assurances from both the UK and US that he's treated fairly and humanely."
But Senator Wong stopped short of saying a Labor government would make specific representations about the case.
"Consular matters are regularly raised with counterparts, they are regularly raised and this one would be no different," she said.
The development comes 10 days after Mr Assange surpassed the three-year anniversary of his arrest.
The 50-year-old Australian was dragged from London's Ecuador embassy on April 11 in 2019 to face extradition to the United States on espionage charges over WikiLeaks' release of confidential US military records and diplomatic cables.
Deputy Prime Minister Barnaby Joyce has previously called for an end to Mr Assange's extradition.
Mr Joyce said Mr Assange didn't steal secret US files but only published them, which did not breach any Australian laws at the time, and he was not in the US when leaks were put online.
The Greens have criticised the extradition of Mr Assange, with senator Peter Whish-Wilson saying the US Espionage Act wasn't intended to be used against publishers.
"We must support press freedoms and those who hold the powerful to account," he said.
"Julian Assange's prosecution has always been political. It needs political intervention of the highest order from our government to get justice for him."
Assange Australia campaign adviser Greg Barnes says it's important the matter has moved back into the political realm.
"Previously the Australian government has said we can't even intervene because the matter is before the courts. It is no longer before the courts in that sense," he told Sky News.
"This is a political decision that will be made by Priti Patel and it's a decision which the Australian government, and of course in this context the opposition, could influence."
The Greens, crossbenchers such as Andrew Wilkie, and Liberal and Labor backbenchers had expressed support for Mr Assange, which could potentially influence a hung parliament in May, Mr Barnes said.
"That's also an interesting factor as to what pressure is going to come on whoever gets elected in May to bring this Australian home."
Australian Associated Press