Indiana Code Title 30. Trusts and Fiduciaries § 30-5-10-3

Sec. 3. (a) Except as otherwise stated in the power of attorney, a power of attorney is not terminated by the incapacity of the principal.

(b) The incapacity of a principal who has previously executed a power of attorney that terminates on the principal's incapacity does not revoke or terminate the power of attorney as to the attorney in fact or other person who, without actual knowledge of the incapacity of the principal, acts in good faith under the power.  Unless otherwise invalid or unenforceable, an action taken under this subsection binds the principal and the principal's successors in interest.