LONDON (Reuters] – On Friday, a multibillion-dollar court battle will take place between Mike Lynch, Britain’s most successful technology entrepreneur, as well as Hewlett-Packard HP(NYSE:)), just as Britain determines whether to extradite Lynch.

Robert Hildyard, High Court Justice will present his findings to a civil suit brought against Lynch by HP for what it claimed was fraudulent inflation of Autonomy’s value before it was sold to U.S. tech company giant.

This ruling comes after almost 10 years’ of bitter dispute over who was responsible for the $11 million acquisition failure that cost HP shareholders billions.

A year after acquiring Autonomy, HP threw out the architect of the deal which was supposed to help transform the computer and printer maker, one of Silicon Valley’s original companies, into a more profitable group centred on business software and services.

It reduced the Autonomy’s value by $8.8billion and demanded damages of approximately $5billion from Lynch and Sushovan Hussain. They claimed that they had inflated Autonomy’s value before it was sold. Hussain was found guilty in 2019 in the United States.

Lynch denied the accusations and claimed that the acquisition failed because of HP’s management. Autonomy could search and organize unstructured data, like telephone conversations.

Lynch, following the verdict of the court, will hear from Lynch on Friday whether Priti Patel (Britain’s Interior Minister) has consented to an extradition request to America where he is facing criminal charges such as wire fraud and securities theft.

Patel was given a deadline by the court to reach a decision on Friday night. Lynch may appeal any judgment against Patel. A maximum sentence of 20 years is possible for the U.S. accusations.

Lynch is Britain’s top tech leader.

The Cambridge University 56-year-old doctoral thesis continues to be one of Cambridge’s most popular. His success in Britain (including the approximately $800million he received from Autonomy) has elevated him and given him a spot on advisory boards.

Lynch also played a key role in the creation and listing of DarkTrace last year, which was a cybersecurity company. According to data from Refinitiv, Lynch and Angela Bacares hold nearly 16% each of DarkTrace.