Administrative Procedure Act Article 170

Administrative authorities shall establish operating rules in respect of the people's petitions, and shall appoint officers to deal with petitions in a prompt and unqualified manner.Where it is necessary to keep the petition of any citizen in confidence, the authority entertaining the petition shall refrain from disclosing it to the public.
中文原文 行政程序法第170條
行政機關對人民之陳情,應訂定作業規定,指派人員迅速、確實處理之。
人民之陳情有保密必要者,受理機關處理時,應不予公開。

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