Sir Andrew Turnbull wrote to Sir Nigel Wicks on November 20th 2003 about a proposed amendment to the Code of Conduct for Special Advisers set out in the Government's Response to the Committee's Ninth Report (Cm 5964) on September 11th 2003. In this amendment, the Government announced that "Special Advisers may, on behalf of their Ministers: (i) convey to officials Ministers' views, instructions and work priorities, including on issues of presentation;". Sir Andrew confirmed that after "reflecting on the wording", the Prime Minister has now decided to delete "instructions" from the amendment to the Code.   

http://www.gnn.gov.uk//Content/Detail.asp?ReleaseID=102160&NewsAreaID=2