Technology tycoon facing extradition begins latest stage of legal battle
Mike Lynch has mounted a High Court challenge to a decision made by a judge during extradition proceedings.

A British technology tycoon facing extradition to the United States after being accused of fraud has begun the latest stage of a legal battle.
Mike Lynch has mounted a High Court challenge to a decision made by a judge during extradition proceedings.
A High Court judge is considering the argument at a hearing in London.
Mr Justice Swift heard how, in July, a judge at Westminster Magistratesā Court rejected āvarious challengesā Mr Lynch had made to extradition and said Home Secretary Priti Patel could decide whether he should be extradited.
Ms Patel subsequently asked District Judge Michael Snow if she could have until March 2022 to make the decision.
Judge Snow refused her application and said she should make a decision before Christmas.
Mr Lynch has challenged that ruling by Judge Snow and wants a High Court judge to overturn it.
Alex Bailin QC, who is leading Mr Lynchās legal team, told Mr Justice Swift that Judge Snowās decision was āirrationalā.
US authorities have accused Mr Lynch of being involved in a multibillion-dollar fraud in America over the sale of his software company, Autonomy, to Hewlett-Packard in 2011 for 11 billion dollars (Ā£8.5 billion), which resulted in ācolossal financial lossesā for the US firm.
They claim that he deliberately overstated the value of his business, which specialised in software to sort through large data sets.
Mr Lynch denies all charges against him.
Ms Patel wants to consider another judgeās ruling, in a separate High Court case involving Mr Lynch, before making an extradition decision.
Lawyers told Mr Justice Swift how that ruling ā by Mr Justice Hildyard ā was imminent.
Mr Justice Hildyard began overseeing a High Court trial in London more than two years ago.
Hewlett-Packard sued Mr Lynch, and Autonomyās former chief financial officer Sushovan Hussain, for around five billion dollars (Ā£3.8 billion) over its purchase of Autonomy in 2011.
The technology giant claimed Mr Lynch ācommitted a deliberate fraud over a sustained period of timeā to artificially inflate Autonomyās value, which it says forced it to announce an 8.8 billion dollar (Ā£6.7 billion) write-down of the firmās worth just over a year after its acquisition.
Mr Lynch argued Hewlett-Packard was trying to make him āa scapegoat for their failuresā.
Mr Bailin told Mr Justice Swift that the issue was āsignificantā.
āThe Secretary of State for the Home Department wishes to consider a very important civil judgment which is due imminently,ā he said.
āShe wants to consider that, when decided, whether or not to extradite the claimant.
āThe civil judgment relates to the very same fraud allegations as are in the US case.ā
He said Judge Snowās ruling was āunlawful in public law termsā and āirrationalā.
Mr Bailin said lawyers representing the US government opposed Mr Lynchās claim.
He told Mr Justice Swift: āThe Secretary of State must be master of her own domain.
āIn my submission, what the judge did was to encroach on her territory.ā
He said the US Government argued that the likely delay was ādisproportionateā to any āconceivable relevanceā the civil court judgment could have.
Mark Summers QC, who led the US government legal team, said there had historically been problems with delays to extradition.
He said the āstatutory perspectiveā meant a home secretary was āconstrained by timeā.
Mr Summers said Judge Snow was entitled to question the reasoning behind any delay sought.
He said the evidence in the civil case had been concluded two years ago and had not led to US authorities bringing further charges.
Mr Summers said Judge Snowās decision was āentirely correctā.
āThe judgeās decision was sound,ā he told Mr Justice Swift. āIt was right.
āIt cannot be vitiated by any conceivable public law error.ā
Mr Justice Swift said he would deliver a ruling on a date to be fixed.