Gordon Brown has urged tighter rules in a letter to the cabinet secretary
Gordon Brown has written personally to those mentioned in e-mails written by his ex-adviser Damian McBride, the prime minister has revealed.
Mr McBride quit his post at Number 10 over unfounded claims about politicians including Tory leader David Cameron.
Here is a transcript of Mr Brown's letter, on 13 April, to smeared Conservative MP Nadine Dorries:
Dear Mrs Dorries
I enclose a letter sent to Gus O'Donnell to revise rules for political advisers.
The political adviser concerned has apologised unreservedly and left his post.
He sent these prank e-mails without the knowledge of anyone in Downing Street.
I understand the embarrassment caused and any activity such as this that affects the reputation of our politics is a matter of great regret to us.
As you can see, I have taken action to do all I can to avoid this happening again.
Here is a transcript of the letter, dated 13 April 2009, Mr Brown wrote to the head of the civil service, Sir Gus O'Donnell:
I am writing about the Code of Conduct for Special Advisers, and the proposals I want to make to tighten this up.
I am assured that no minister and no political adviser other than the person involved had any knowledge of or involvement in these private emails that are the subject of current discussion.
I have already taken responsibility for acting on this - first by accepting Mr McBride's resignation and by making it clear to all concerned that such actions have no part to play in the public life of our country.
I have also written personally to all those who were subject to these unsubstantiated claims.
Mr McBride has apologised and done so unreservedly. But it is also important to make sure such behaviour does not happen again.
Any activity such as this that affects the reputation of our politics is a matter of great regret to me and I am ready to take whatever action is necessary to improve our political system.
I would therefore now like a more explicit assurance included in the special advisers Code of Conduct that not only are the highest standards expected of political advisers but that the preparation or dissemination of inappropriate material or personal attacks have no part to play in the job of being a special adviser, just as it has no part to play in the conduct of all our public life.
I also think it right to make it a part of the special advisers contract by asking our political advisers to sign such an assurance and to recognise that if they are ever found to be preparing and disseminating inappropriate material they will automatically lose their jobs.
I think you will agree that all of us in public life have a responsibility to ensure that those we employ and who are in involved in our parties observe the highest standards.
Like the overwhelming majority of figures in public life across the political spectrum, I entered politics because of a sense of public duty and to improve the lives and opportunities of those less fortunate than me.
My undivided focus as prime minister is on acting to make Britain a fairer, safer and more prosperous nation and, in particular, on guiding the country through the current economic difficulties.
The public would expect no less and would also expect the highest possible standards from all their politicians and all those who work for them.