The number of people injured or killed by guns, excluding air weapons, has increased from 864 in 1998/99 to a provisional figure of 1,760 in 2008/09, an increase of 104 per cent .
The figures follow a warning by Mr Grayling that U.S.-style gang culture has reached some parts of the UK.
In August, he made a controversial speech warning that a collapse of 'civilised life' had allowed a brutal drug and gun crime culture - like that of the U.S. TV show The Wire - to flourish in Britain.
The hit TV series tracks the nightmare of gangs and organised crime in inner city West Baltimore and the futile efforts of police to deal with them.