Immigration Act Article 68

The staff of the National Immigration Agency shall adopt the following mandatory measures to check the identity of a person:1. Stop people, cars, boats or other transportation vehicles.2. Enquire about a person’s name, date of birth, nationality, information on entry and exit, domicile, period of a visit or residence in the Taiwan Area, and related identification numbers.3. Produce identification documents.4. Use electronic equipment to recognize individual biometric characteristics data.5. There are sufficient facts for the staff to believe that a person who is checked by the staff carries with him/her things that are sufficient to endanger the life and injure the body of the staff or of the person under the check and the staff shall check the person’s body and the things carried by the person. The staff shall seize such things if necessary.
中文原文 入出國及移民法第68條
移民署執行職務人員依前條規定查證身分,得採行下列必要措施:
一、攔停人、車、船或其他交通工具。
二、詢問姓名、出生年月日、國籍、入出國資料、住(居)所、在臺灣地區停留或居留期限及相關身分證件編號。
三、令出示身分證明文件。
四、以電子設備進行個人生物特徵識別資料之辨識。
五、有事實足認受查證人攜帶足以傷害執行職務人員或受查證人生命、身體之物者,得檢查其身體及攜帶之物;必要時,並得將所攜帶之物扣留之。

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