Futures Trading Act Article 99

To maintain the public interest and market order, if there is a likelihood of any violation of this Act, the Competent Authority may request institutions, organizations, or individuals related to the futures trading to submit relevant account books or documents, or notify relevant personnel to appear at the office of the Competent Authority to give statements. The regulations governing the above shall be prescribed by the Competent Authority.Persons being requested to appear under the preceding paragraph may retain attorneys-at-law, certified public accountants, or other persons who, under the law, can legally represent and defend them.
中文原文 期貨交易法第99條
主管機關為維護公眾利益或市場秩序,對於有違反本法行為之虞者,得要求期貨交易之有關機關、團體或個人,提示有關帳簿、文據或通知有關人員到達辦公處所說明;其作業辦法,由主管機關定之。
前項被請求人得選任律師、會計師或其他依法得為辯護之人到場。

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