Commercial Case Adjudication Act Article 52

With the permission of the presiding judge, an expert witness may question the other expert witnesses or examiners during the session designated for examination .The remuneration and other expenses of expert witnesses shall be paid by the parties who introduce the expert.The provisions of Article 316 through Article 322 and Article 334 of the Taiwan Code of Civil Procedure shall apply mutatis mutandis to expert witnesses.
中文原文 商業事件審理法第52條
專家證人經審判長之許可,得於訊問期日對其他專家證人或鑑定人發問。
專家證人之酬金及其他費用,由聲明之當事人支付。
民事訴訟法第三百十六條至第三百二十二條及第三百三十四條規定,於專家證人準用之。

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