Government Procurement Act Article 6

In conducting any procurement, an entity shall observe the principle of protecting public interests, fairness and reasonableness, and shall not accord differential treatment to suppliers without due cause.The procurement personnel may base on the consideration of public interest, procurement efficiency or professional judgment to make an appropriate procurement decision, to the extent not contrary to the provisions of this Act.Judicial, control or other entities may request the responsible entity to provide assistance, identify service, or professional opinions when conducting investigation, prosecution, trial, impeachment, censure, etc. against a procuring entity or personnel.
中文原文 政府採購法第6條
機關辦理採購,應以維護公共利益及公平合理為原則,對廠商不得為無正當理由之差別待遇。
辦理採購人員於不違反本法規定之範圍內,得基於公共利益、採購效益或專業判斷之考量,為適當之採購決定。
司法、監察或其他機關對於採購機關或人員之調查、起訴、審判、彈劾或糾舉等,得洽請主管機關協助、鑑定或提供專業意見。

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