Enforcement Rules of the Household Registration Act Article 31

When the household registration office makes the census on every household and every member of household, the chief of each village and neighborhood, as well as the clerks of each village and policemen of each police precinct shall provide the office with assistance.
中文原文 戶籍法施行細則第31條
戶政事務所按戶逐口辦理戶口調查時,村(里)鄰長、村(里)幹事、警勤區員警及入出國管理機關人員應予協助。

English translation for reference only; the Chinese text prevails. Not legal advice.