Ind. Code § 31-21-4-11
An Indiana court shall preserve the:
(6) other pertinent records;
with respect to a child custody proceeding until the child becomes eighteen (18) years of age. On appropriate request by a court or law enforcement official of another state, the Indiana court shall forward a certified copy of the records to the court of the other state.
As added by P.L.138-2007, SEC.45.