(a) The department shall:
(1) administer the training, diagnostic treatment, and supervisory facilities and services of the state for children committed to the department; and
(2) manage and direct all institutions and training school facilities under the authority of the department.
(b) The department shall have general charge of and be responsible for the welfare, custody, and rehabilitation of the children in a school, facility, or program operated or funded by the department. The department shall seek to establish relationships and to organize a way of life that will meet the spiritual, moral, physical, emotional, intellectual, and social needs of the children under the department's care as those needs would be met in an adequate home.
(c) The department shall see that the buildings and premises are kept in good sanitary condition.