Indiana Code Title 20. Education § 20-33-2-16

Sec. 16. The governing body of a school corporation or the chief administrative officer of a nonpublic school system shall authorize the absence and excuse of a student who is issued a subpoena to appear in court as a witness in a judicial proceeding.  A student excused under this section shall not be recorded as being absent on any date for which the excuse is operative and shall not be penalized by the school in any manner.  The appropriate school authority may require that the student submit the subpoena to the appropriate school authority for verification.