MP David Davies quits police special constable role
Monmouth MP David Davies has been asked to resign his role as a special constable for the British Transport Police (BTP) after a new code of ethics was drawn up.
He said it was a "pity the rules had changed", affecting his part-time role and that of fellow special constable, Kettering MP Philip Hollobone.
The College of Policing view is that a special constable "should not take an active part in politics".
BTP thanked the pair for their service.
Mr Davies worked a shift as a volunteer special constable about once a fortnight but stopped when the guidance was issued last year and has now been "asked to stand down".
He had served for nine years.
A British Transport Police BTP spokesman confirmed the decision was taken after the guidance issued in the College of Policing's code of ethics.
"Unfortunately this means we have had to take the difficult step of asking two of our special constables, who are also Members of Parliament, to step down from their roles with BTP," the spokesman said.
"This decision is in no way a reflection of the valuable role they have both played in helping keep the travelling public safe and secure and we would like to thank them for their many hours of unpaid service."