Code of Civil Procedure Article 310

The court in which the action is pending shall, after questioning the party who appears, rule on whether the witness's refusal to testify is justifiable. An interlocutory appeal may be taken from the ruling provided in the preceding paragraph; the execution of the ruling shall be stayed pending such appeal.
中文原文 民事訴訟法第310條
拒絕證言之當否,由受訴法院於訊問到場之當事人後裁定之。
前項裁定,得為抗告,抗告中應停止執行。

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