WikiLeaks founder hopes to enter politics in home country after discovering his ongoing extradition battle would be no bar

The WikiLeaks founder Julian Assange plans to run for a seat in Australia's senate next year despite being under virtual house arrest in the UK and facing sex crime allegations in Sweden.

The 40-year-old Australian citizen has taken his legal battle against extradition all the way to Britain's supreme court, which is expected to rule on his case soon.

"We have discovered that it is possible for Julian Assange to run for the Australian senate while detained. Julian has decided to run," WikiLeaks announced on Twitter.

Assange has criticised Australian prime minister Julia Gillard's centre-left government for not standing up for him in the wake of WikiLeaks' release of hundreds of thousands of classified US embassy cables in 2010.

Australian police have concluded that WikiLeaks and Assange did not break any Australian laws by publishing the cables, although Gillard has condemned the action as "grossly irresponsible".

John Wanna, a policical scientist at Australian National University, said it was possible for Assange to run for a senate seat if he remained on the Australian electoral roll, despite living overseas for several years.

"If he gets on the roll, then he can stand as long as he's solvent and not in jail and not insane," Wanna said.

Being convicted of a crime punishable under Australian law by 12 months or more in prison can disqualify a person from running for the Australian parliament for the duration of the sentence, even if it is suspended.

Constitutional lawyer George Williams of the University of New South Wales said that provision of the constitution has never been tested in the courts in the 111-year history of the Australian federation and probably would not apply to a criminal conviction in a foreign country such as Sweden.

"I'm not aware of an impediment to him standing, even if he was convicted," Williams said.

Any adult Australian citizen can run for parliament, but few succeed without the backing of a major political party. Only one of Australia's 76 current senators does not represent a party.

Every Australian election attracts candidates who have little hope of winning and use their campaigns to seek publicity for various political or commercial causes.

Wanna said the odds are against Assange winning a seat, but that he could receive more than 4% of the votes in his nominated state because of his high profile. At that threshold, candidates can claim more than AUS$2 per vote from the government to offset their campaign expenses. Assange's bill to the taxpayer could reach hundreds of thousands of dollars.

The next senate election cannot be called before July 2013 and is due around August. Candidates cannot officially register as candidates until the election is called at least a month before the poll date.

Assange's mother, Christine Assange, a professional puppeteer from rural Queensland, said on Saturday she had yet to discuss her son's political bid with him. But she criticised what she believed was the government's willingness to put its defence treaty with the US ahead of the rights of an Australian citizen.

"The number one issue at the next election regardless of who you vote for is democracy in this country – whether or not we're just a state of the US and whether or not our citizens are going to be just handed over as a sacrifice to the US alliance," she said.