Indiana Code Title 11. Corrections § 11-11-3-2

Sec. 2. (a) A confined person may send and receive, in any language, an unlimited amount of correspondence to or from any person, except as provided by subsection (b).

(b) The department may require prior approval of correspondence between a confined person and another person if the other person is on parole or:

operated by the department, a county sheriff, a county, the United States, or any state.

(c) If the department determines that the correspondence referred to under subsection (b) is in the best interest of both the confined person and the facility involved, such correspondence shall be permitted.

(d) When the department has prohibited correspondence referred to under subsection (b) it shall follow the procedure for notification and availability of the grievance procedure as provided in sections 4(d) and 4(e) of this chapter.