Ind. Code § 30-2-8.6-31
(a) A third person in good faith and without a court order may act on instructions of, or otherwise deal with, a person purporting to:
(2) act in the capacity of;
a custodial trustee.
(b) In the absence of knowledge to the contrary, a third person described in subsection (a) is not responsible for determining:
(3) the validity or propriety of an instrument executed or instruction given under this chapter by:
As added by P.L.3-2003, SEC.1.