(1)In England and Wales, the returning officer for a parliamentary election is—
(a)in the case of a county constituency which is coterminous with or wholly contained in a county, the sheriff of the county ;
(b)in the case of a borough constituency which is coterminous with or wholly contained in a district, the chairman of the district council;
(c)in the case of any other constituency wholly outside Greater London, such sheriff or chairman of a district council as may be designated in an order by the Secretary of State made by statutory instrument;
(d)in the case of a constituency which is coterminous with or wholly contained in a London borough, the mayor of the borough;
(e)in the case of a constituency wholly or partly in Greater London which is situated partly in one London borough and partly in a district or any other London borough, the mayor of such London borough or the chairman of such district council as may be designated in an order by the Secretary of State made by statutory instrument.
The City, the Inner Temple and the Middle Temple shall be treated for the purposes of this section as if together they formed a London borough.
(2)A parliamentary election is not liable to be questioned by reason of a defect in the title, or want of title, of the person presiding at or conducting the election, if that person was then in actual possession of, or acting in, the office giving the right to preside at or conduct the election.