DCS shall employ officers. DCS may assign one officer to each judicial circuit in this state or, for purposes of assignment, may consolidate two or more judicial circuits and assign one officer thereto. In the event DCS determines that more than one officer is needed for a particular circuit, additional officers may be assigned to the circuit. DCS is authorized to direct any officer to assist any other officer wherever assigned. In the event more than one officer is assigned to the same office or to the same division within a particular judicial circuit, DCS shall designate one of the officers to be in charge.