Ind. Code § 3-14-5-6
In a criminal prosecution for violation of IC 3-14-1-7 , IC 3-14-1-10 , IC 3-14-1-13 , IC 3-14-1-14 , or IC 3-14-1-14.5 , a witness, except the person who is accused and on trial, may not be excused from answering a question or producing a book, paper, or other thing on the ground that the witness' answer or the thing to be produced may tend to incriminate the witness or render the witness liable to a penalty. However, the witness' answer or the thing produced by the witness may not be used in a proceeding against the witness, except in a prosecution for perjury in so testifying.
As added by P.L.5-1986, SEC.10. Amended by P.L.3-1995, SEC.138; P.L.3-1997, SEC.410.