Referendum Act Article 53

If the competent authority rejects a referendum proposal, determines that the joint signature requirement has not been met, or fails to make a decision within the statutory period, the lead proposer may file an administrative lawsuit in accordance with the law.The procedures for referendum lawsuits shall be governed by the Administrative Procedure Act, except as otherwise provided for in this Act.A High Administrative Court may delegate the preservation of evidence to a District Court.The provisions of Paragraph 3 of Article 116 of the Code of Civil Procedure may apply mutatis mutandis to the preservation of evidence.
中文原文 公民投票法第53條
主管機關駁回公民投票提案、認定連署不成立或於法定期間內不為決定者,提案人之領銜人得依法提起行政爭訟。
公民投票訴訟程序,除本法規定者外,適用行政訴訟法之規定。
高等行政法院實施保全證據,得囑託地方法院為之。
民事訴訟法第一百十六條第三項規定,於保全證據時,得準用之。

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