From Longman Dictionary of Contemporary Englishscrutineerscru‧ti‧neer /ˌskruːtəˈnɪə $ -tnˈɪr/ noun [countable] British English PPVan official who checks that the votes in an election are counted fairly
Examples from the Corpus
scrutineer• The chairman of the 1922 Committee and scrutineers designated by him will he available to receive nominations.• Included in their package of proposals are a national scrutineer and adviser on student association accounts and activities.• The names of the proposer and seconder will not be published and will remain confidential to the scrutineers.• Not while scrutineers watched, and calculators assessed? 