Juvenile Justice Act Article 13

A juvenile investigation officer or a juvenile probation officer who holds a concurrent post of the division chief or team leader in the juvenile court shall be of the 9th grade of Delegated Appointed Rank or the 10th grade of Selected Appointed Rank; the rest of the juvenile investigation officer or the juvenile probation officer shall be of the 7th to 9th grade of Delegated Appointed Rank.The juvenile investigation officer in the juvenile division of the high court shall be of the 8th or 9th grade of Delegated Appointed Rank to the 10th grade of Selected Appointed Rank.
中文原文 少年事件處理法第13條
少年法院兼任處長或組長之少年調查官、少年保護官薦任第九職等或簡任第十職等,其餘少年調查官、少年保護官薦任第七職等至第九職等。
高等法院少年法庭少年調查官薦任第八職等至第九職等或簡任第十職等。

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