Private Security Service Act Article 2

The competent authorities herein refer to the Ministry of the Interior at the central government level, the municipal government at the municipality level, and the county (city) government at the county (city) level.
中文原文 保全業法第2條
本法所稱主管機關:在中央為內政部;在直轄市為直轄市政府;在縣(市)為縣(市)政府。

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