London Mayor Boris Johnson has claimed that the extradition of hacker Gary McKinnon is ‘brutal, mad and wrong'.

In an interview with the Daily Mail, Johnson claimed that he will write to peers next week urging them to change the law to prevent similar injustices taking place, and to vote for the immediate introduction of an amendment to the 2003 Extradition Act that would make it far more likely cases such as Gary's would be tried in the UK.

Johnson said: “There are a number of serious flaws in the Extradition Act in its current form. In the case of Gary McKinnon it is brutal, mad and wrong to consider sending him to the U.S. Gary's case is just one high-profile case we are aware of, but a number of other UK citizens are also in similar positions and are currently awaiting their fate.

“I would urge peers to take full account of the well-being of the people of this country and take this opportunity to change this cruel and irrational law.”

The 2006 amendment states extradition could be barred by the courts if a significant part of the alleged law breaking was conducted in the UK and this was passed, but the Government has failed to enact it. When the law was passed the Government insisted it could only be enacted after a vote in both the Commons and the Lords.