He was arrested in Victoria’s Macedon Ranges on Tuesday after six months on the run.
An arrests warrant was issued for Mr Foster in May when he failed to attend a Sydney court hearing.
The 59-year-old is alleged to have defrauded a Hong Kong pilot for nearly two million in Bitcoin between 2019 and 2020 as part of a sports betting scam.
He arrived at Brisbane airport surrounded by police and in handcuffs.
Mr Foster refused to say where he had been or what he had been up to while on the run.
Instead, he talked about Julian Assange.
“I’m just taking a moment to feel for Julian Assange today and I just hope to give a moment for his troubles, which are far greater than mine. I think as a nation we should be ashamed our government isn’t do more to save him,” Mr Foster said.
Mr Foster will stay at a watch-house where he’ll spend the next two nights before fronting court on Monday.
Queensland police are expected to lay new charges against him.