Code of Civil Procedure Article 331
A party may move for the rejection of an expert witness on the same grounds as for moving for the disqualification of a judge; however, the fact that an expert witness has acted as a witness or expert witness in the same action is not an appropriate reason.Except in the case provided in the first paragraph of the preceding article, no party may move for the rejection of an expert witness after such expert witness has made statements or presented his/her written expert testimony with regard to the matter for which expert testimony is sought, unless the reason for rejection occurs or becomes known thereafter.
中文原文 民事訴訟法第331條
當事人得依聲請法官迴避之原因拒卻鑑定人。
但不得以鑑定人於該訴訟事件曾為證人或鑑定人為拒卻之原因。
除前條第一項情形外，鑑定人已就鑑定事項有所陳述或已提出鑑定書後，不得聲明拒卻。
但拒卻之原因發生在後或知悉在後者，不在此限。
但不得以鑑定人於該訴訟事件曾為證人或鑑定人為拒卻之原因。
除前條第一項情形外，鑑定人已就鑑定事項有所陳述或已提出鑑定書後，不得聲明拒卻。
但拒卻之原因發生在後或知悉在後者，不在此限。