Ind. Code § 24-1-2-11
Any person or officer, agent, or employee of a corporation may be examined as a witness or a party as in other cases, in any civil action instituted under the provisions of this chapter and required to disclose all the facts relevant to the case in the person's, officer's, agent's, or employee's knowledge as provided in this chapter, but the testimony of such witness or party or any answer to any question propounded to the witness or party in such examination shall not be used against such witness or party in any criminal prosecution except in case of perjury committed by the witness or party during the testimony or examination; and the witness or party shall not be liable to trial by indictment or affidavit or to punishment for any offense inquired about. However, that such exemption shall be personal to such witness and shall not exempt or render immune the corporation of which such witness shall be an officer, agent, or employee, and such corporation shall be as liable for any violation of this chapter as if such officer, agent, or employee had not so testified.
IC 24-1-2-11