Organic Statute of Reform Schools Article 43

Dormitory quarters of students shall be designated after proper evaluation of student conditions; however, students committing serious violation of the organization and living disciplinary rules shall be subject to solitary quarter isolation upon the approval of the school director.The maximum solitary quarter isolation period shall be seven days.
中文原文 少年輔育院條例第43條
在院學生應斟酌情形予以分類離居。
但有違反團體生活紀律之情事而情形嚴重者,經院長核定,得使獨居。
前項獨居之期間,每次不得逾七日。

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