Special advisers’ duties and responsibilities are set out in the “Code of Conduct for Special Advisers”. Any investigation into alleged breaches of the Code of Conduct for special advisers is a matter for individual Departments.
Copies of the “Code of Conduct for Special Advisers” are available in the Library of the House and also available at
http://www.cabinetoffice.gov.uk/propriety_and_ethics/special_advisers/code/code.aspx.