NASA hacker Gary McKinnon will see a decision on his extradition to the US before the end of the year.
According to McKinnon's solicitor, the home secretary Theresa May, with a judicial review of the decision to follow weeks later.
"Should the decision from the Home Secretary not be in Mr McKinnon's favour, the High Court has fixed the case for hearing on the 28 and 29 November 2012," a statement from Kaim Todner Solicitors said.
The US began extradition proceedings against McKinnon in 2005, and his case hasfor the extradition treaty between the two countries to be overhauled.
McKinnon is wanted on seven counts of hacking into NASA and Pentagon computers between 1 February, 2001 and 19 March, 2002. The Londoner has admitted hacking into the systems, claiming to have been looking for evidence of extra-terrestrials, but denies causing damage.