Babar Ahmad, a British Muslim, was originally arrested at his Tooting home in December 2003 under anti-terror legislation before being released six days later without charge.
The US Goverment claimed Mr Ahmed was involved with terror websites – a charge he vehemently denies.
He was re-arrested in August 2004 and imprisoned prior to the US Government’s extradition request under the controversial Extradition Act 2003 – he has been detained without trial ever since.
The 38-year-old has since appealed to The European Court of Human Rights in the belief that his extradition to the US has breached his human rights.
The decision on his appeal will be read out at the court’s base in Strasbourg, France, on Tuesday,April 10, when he will learn his fate.
Sara Ahmad, Babar’s sister, told the Wandsworth Guardian about the maximum security or “super-max” prison her brother will be sent to if he loses next week’s appeal.
She said: “In essence we are just hoping the decision in Strasbourg goes our way, because we have been calling for Babar to be tried in the UK.
“We have a great, centuries old, legal system in this country so I don’t understand why he cannot be tried here?
“Some of the stories we have heard about the ‘super-max’ prison are horrific not just general treatment but solitary confinement, one phone call per month and no visits.”
Mr Ahmad’s family claim he sustained at least 73 “forensically recorded” injuries following his original arrest in December 2003.
In 2008, it emerged conversations between Mr Ahmad and Tooting MP Sadiq Khan had been bugged by police during a visit by the politician to see his former schoolmate A year later, the former public school pupil won a £60,000 payout from the Metropolitan Police after the force admitted he had been attacked.
In 2011 an official e-petition called “Put Babar Ahmad on trial in the UK” was started and as of today, March 30, 149,383 people had signed it – the second highest tally ever recorded on the website.
He is currently confined at Long Larton prison in Worcestershire and is the longest British citizen detained-without-charge as part of the global ‘war on terror’.