Organic Statute of Reform Schools Article 13

A reform school for juveniles having the student population under one hundred students shall have four guidance counselors and four discipline officers under contract hiring; a reform school having the student population exceeding one hundred students shall have an additional appointed guidance counselor and appointed discipline officer for each class section organized; however, maximum number of counselor and department staff shall be sixteen only.Every class shall be composed of thirty students as a rule; a class shall likewise be organized in the event of female students or other special conditions causing a particular class population to fall under thirty.
中文原文 少年輔育院條例第13條
少年輔育院學生人數在一百人以下者,置導師及訓導員各四人,聘任;學生人數在一百人以上者,每編組一班,增設導師及訓導員各一人。
但最多均不得超過十六人。
每班學生以三十人為原則;女生或有其他特殊情形不足三十人者,亦得另編一班。

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