Sting's wife Trudie Styler, who backed the campaign against Gary McKinnon's extradition, has said the Home Secretary has shown "humanity and courage" in making her decision.
She said: "I am delighted that after all the years of wrangling and uncertainty - which, in themselves, have taken a terrible toll on Gary's already poor health - the Home Secretary has shown the humanity and courage to reach this decision.
"As a mother I applaud the steadfast love and support which Janis has given her son as she has fought every inch of the way against Gary's extradition to the USA."
The Home Secretary has decided to block a request to extradite computer hacker Gary McKinnon to the US on the grounds of his human rights.
Computer hacker Gary McKinnon is due to find out whether the Home Secretary will end his 10-year battle against extradition to the US.