Legal experts believe that her case is potentially more explosive for the Government than the Hutton inquiry because it could allow her defence team to raise questions about the legality of military intervention in Iraq. The Attorney General, Lord Goldsmith, is likely to come under pressure to disclose the legal advice he gave on military intervention - something he has so far refused to do.
At a hearing last November, Gun's legal team indicated that she would use a defence of 'necessity' to argue that she acted to save the lives of British soldiers and Iraqi civilians.
At the time Gun, who was sacked after her arrest and whose case is funded by legal aid, said in a statement: 'Any disclosures that may have been made were justified on the following grounds: because they exposed serious illegality and wrongdoing on the part of the US government who attempted to subvert our own security services; and to prevent wide-scale death and casualties among ordinary Iraqi people and UK forces in the course of an illegal war.'
She added: 'I have only ever followed my conscience.'
This is going to be worth watching...