Ala. Code § 22-50-3

All fees, receipts, and income of the Department of Mental Health shall be paid over to a departmental treasurer, to be selected by the commissioner, or to a bank in lieu of the treasurer, as the commissioner may direct, and may be expended as authorized by the commissioner for support, maintenance, and operation of the state hospitals, Partlow State School and Hospital, and other institutions, services and programs subject to the jurisdiction and control of the department.