WikiLeaks founder Julian Assange is back at the Supreme Court on Thursday for the final day of his appeal.
The 40-year-old Australian is fighting his extradition to Sweden on the grounds that the European arrest warrant issued against his is "invalid and unenforceable".
On Thursday, Sweden's public prosecutor argued for Assange's extradition.
The WikiLeaks chief, who is on bail living with friends, is appearing in the UK's highest court in person for his latest attempt to block his removal to face questioning on sex crime allegations.
He is appealing against a High Court ruling that it would not be unfair or unlawful to extradite him.
The Swedish authorities want him to answer accusations of "raping" one woman and "sexually molesting and coercing" another in Stockholm in August 2010 while on a visit to give a lecture.
Assange, whose WikiLeaks website published a mass of leaked diplomatic cables that embarrassed several governments and international businesses, says the sex was consensual and the allegations against him were politically motivated.
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