Returning officer
In United Kingdom, a Returning Officer is responsible for overseeing elections in one or more constituencies.
In England and Wales the post of Returning Officer is an honorary one, held by the High Sheriff of the county, and in practice the job is delegated to an Acting Returning Officer, who is usually a senior officer in the local authority.
In Hong Kong, the returning officer is usually a judge.
Germany has a Federal Returning Officer
In the Hong Kong University Students' Union(HKUSU) formed by students of the Unversity of Hong Kong, the returning officers are the councilors of the Union Council.