Sec. 117.6. "Individual with a mental illness", for purposes of IC 12-21-2 and IC 12-24-17, means an individual who:
(1) has a psychiatric disorder that substantially impairs the individual's mental health; and
(2) requires care, treatment, training, or detention:
(A) because of the psychiatric disorder; or
(B) for the welfare of the individual or others of the community in which the individual resides.