Two judges deferred a decision today over whether to allow WikiLeaks' founder Julian Assange to be extradited to Sweden from Britain over allegations of sexual misconduct.
A written judgment will be handed down at a later date, as yet unspecified.
Lawyers acting for Swedish authorities told the British court that Mr Assange faced accusations of rape and sexual assault and should be transferred to Sweden to face them.
The 40-year-old Australian computer expert was in the High Court in London for the final day of a two-day hearing after losing an initial challenge to the extradition order in February.
Swedish prosecutors want to question Mr Assange about three allegations of sexual assault and one of rape made by two women, both WikiLeaks volunteers, in Sweden last August. Mr Assange denies the allegations and no formal charges have yet been brought.
Mr Assange's defence team has asked two judges to block his extradition, arguing the case was legally flawed and that sex had always been consensual.
But Clare Montgomery, appearing for the Swedish prosecuting authority, dismissed the Assange claims, saying it was "perfectly plain" that the women had made allegations of non-consensual sex.
The defence's argument has centred on the fact that Mr Assange has not been formally accused of any crime yet in Sweden, though his team concede that could come at a later date.
Mr Assange's defence lawyers told the court yesterday the European arrest warrant on which he was being held was flawed because it failed to provide "a fair, accurate and proper" description of his alleged sexual misconduct in Sweden.
His team also said it had no access to the full dossier detailing the allegations against him.
Defence lawyer Ben Emmerson stressed that interviews could take place by telephone, using Skype, or in writing, under Swedish law, without the need to extradite.
Legal teams acting for both Assange and Swedish authorities said it would be highly unusual for the two judges hearing the case to make a decision on the appeal on the same day. They said a written judgement is more likely at a later date.
Mr Assange sat quietly in court, flanked by aides and supporters that include fellow Australian and left-wing investigative journalist and author, John Pilger.
Mr Assange's whistle-blowing website began publishing a cache of more than 250,000 secret U.S. diplomatic cables which angered the US government and caused a media sensation last year shortly before Mr Assange was arrested.
Mr Assange has said he believes the Swedish case is politically motivated.
Even if the High Court upholds the extradition request, Mr Assange could take his battle to Britain's Supreme Court, the country's highest, though this can only be done on a point of law considered to be of general public interest.
A Supreme Court ruling would mark the end of the process.