Hamza, who uses two hooks instead of hands and who is blind in one eye, gets very little help with his disability in the maximum-security ADX Florence prison in Colorado.

Now he has registered an appeal against his incarceration there in the hope that he can be sent back to this country to serve his sentence here.

In US court documents, lawyers for the former cleric are arguing that Hamza is suffering “inhuman and degrading” treatment in solitary confinement.

In contrast to his time in Belmarsh prison in Thamesmead, south east London, during which he was free to mix with other prisoners and visited by  doctor up to five times a week, he is permitted just one hour per day of recreation time in Colorado.

The 59-year-old was arrested by British police in 2004 following a United States request to face charges. He was charged with 16 offences of inciting violence and racial hatred, and after being convicted, sentenced to seven years’ imprisonment.

After an eight-year-battle, he was extradited to the States in 2012 and found guilty of eight terrorism charges in 2014. On January 9, 2015, he was sentenced to life in prison without parole.

The 242-page document, filed under his real hame, Mostafa Kamel Mustafa, claims the stumps in both Hamza’s arms are subject to regular infections.

Apart from his injuries, which he claims were sustained during an accidental explosion in Pakistan, he also suffers from diabetes, psoriasis, and a condition which produces excessive sweating.

Michael Bachrach, one of the preacher's lawyers, explained: “We strongly believe that the conditions of his confinement violate the expectations of the European Convention on Human Rights and the promises that were made by the US government to the [British and European] courts as part of the extradition process.

“He would go back to Belmarsh in a second if he could.” 

Hamza’s submission also claims his notoriety meant he did not receive a fair trail when convicted in New York in 2015.

It states: "This appeal raises the question of whether a fiery orator can receive a fair trial when his speeches offend the values that Americans hold dear."

ADX Florence is home to 410 male prisoners classified as too dangerous to be kept in one of the country’s high-security jails. Fellow inmates include Boston Marathon bomber Dzhokhar Tsarnaev.

US taxpayers are footing the bill for Hamza’s appeal. Hamza has already cost British taxpayers £1million in legal fees.