McKinnon will not face charges
Gary McKinnon, who is wanted on computer hacking charges in the United States, will not face prosecution in the UK.
Director of Public Prosecutions Keir Starmer announced the decision this afternoon, saying the chances of a successful conviction were "not high".
Home Secretary Theresa May blocked an extradition order to the United States in October, claiming the move would give rise to "a high risk" of suicide.
In a statement, Mr Starmer said the "potential difficulties" in bringing a case in England Wales "should not be underestimated".
"Against this background, the joint CPS/police panel recommended to the Assistant Commissioner of the Metropolitan Police that he should not commence a new criminal investigation into Mr McKinnon. The Assistant Commissioner of the Metropolitan Police has accepted that advice," he added.
Mr McKinnon's mother, Janis Sharp, welcomed the news and said she was grateful to Ms May that the case was "all over now".