Gary McKinnon, a British computer hacker who has been fighting a ten-year battle against extradition to the United States is set to learn his fate.
McKinnon was a Scottish systems administrator when he found himself labeled as the biggest military computer hacker of all time by the US.
He was accused of hacking into computers at the Pentagon and NASA.
The Home Secretary will tell parliament whether the government accepts medical reports suggesting McKinnon, who suffers from Asperger's syndrome and is on the autism spectrum, would be a risk to himself if he was sent for trial in the US.
Al Jazeera's Peter Sharp reports from London.