Act Governing the Recovery of Damage of Individual Rights during the Period of Martial Law Article 5

During the period of Martial Law, any individual who has been convicted of the offenses of sedition or treason and received a guilty judgment, their confession as an accused shall not be extracted by violence, threat, inducement, fraud, unlawful detention, or other improper means; in addition, if the confession is not investigated anew, it shall not be used as the sole basis of conviction of another crime or information against another party.
中文原文 戒嚴時期人民受損權利回復條例第5條
戒嚴時期人民因犯內亂、外患罪而受有罪判決,有關被告之自白必須非出於強暴、脅迫、利誘、詐欺、違法羈押或其他不正之方法,且非經更新調查不得作為另案犯罪之唯一證據,或不利第三者之資料。

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