Complex sentence: The Ministry of Public Security and its local bureaus administer border and frontier defence, garrison and fire brigade units.The forest police units, gold mines units, hydroelectricity units, and transportation units are subject to the dual leadership of the PAP headquarters and the relevant government agency.
Split into simpler sentences: The Ministry of Public Security and its local bureaus administer border and frontier defence, garrison and fire brigade units. Third, forest police units, gold mines units, hydroelectricity units, and transportation units are subject to the dual leadership of the PAP headquarters and the relevant government agency.