Personal Data Protection Act Article 15

Except for the personal data specified under paragraph 1 of Article 6, the collection or processing of personal data by government agencies shall be for specific purposes and on one of the following bases:1.where it is within the necessary scope to perform its statutory duties;2.where consent has been given by the data subject; or3.where the rights and interests of the data subject will not be infringed upon.
中文原文 個人資料保護法第15條
公務機關對個人資料之蒐集或處理,除第六條第一項所規定資料外,應有特定目的,並符合下列情形之一者:
一、執行法定職務必要範圍內。
二、經當事人同意。
三、對當事人權益無侵害。

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