WARNING : CONTAINS GRAPHIC CONTENT . Wiltshire Police Gane , 16 , and twin Loui were with a group of friends in Dilton Marsh . They were approached and threatened by an unknown man . When Loui questioned him he lashed out with knife and Wiltshire Police stepped in . Wiltshire Police suffered eight inch wound from his shoulder to centre of his chest . Tyler said he is 'lucky to be alive ' after the attack on Saturday . They are searching for the man , described as between 20 and 30 years old .
WARNING : CONTAINS GRAPHIC CONTENT . Tyler Gane , 16 , and twin Loui were with a group of friends in Dilton Marsh . They were approached and threatened by an unknown man . When Loui questioned him he lashed out with knife and Tyler stepped in . Tyler suffered eight inch wound from his shoulder to centre of his chest . Wiltshire Police said he is 'lucky to be alive ' after the attack on Saturday . They are searching for the man , described as between 20 and 30 years old .