Sch 3 para 11
(1) The senior coroner or an area coroner or assistant coroner for an area (“the relevant coroner area”) must vacate office immediately if— (a) he or she becomes a councillor for a local authority, and (b) the area of that local authority is the same as or falls within the relevant coroner area. (2) In the application of this paragraph to the Common Council, the reference to a councillor is to be read as a reference to an alderman of the City of London or a common councillor.