Past investigations of complaints about Special Political Advisers have not responded directly to public concern, are seen not to have been transparent and have damaged trust in many UK Administrations of different political hues. The Committee on Standards in Public Life should be given the job.
You may be interested in these active petitions
The Committee on Standards in Public Life advises the Prime Minister on the Nolan Principles of Public Life, to which UK public appointees (but not explicitly Special Political Advisers) have been subject since the 1990's. It would be well placed to investigate complaints of misconduct. Investigations should be started at the request of Ministers, Parliament, any Regulator affected by a complaint or 1000 members of the public. The results and any recommended sanctions should be published