Sec. 11. (a) Except as provided in subsection (c), the following are not subject to subpoena or discovery or admissible in evidence in any judicial or administrative proceeding:
(1) All work product of a mediator.
(2) Any communication relating to the subject matter of the dispute made during the resolution process by a participant, mediator, or other person present at the dispute resolution.
(b) A mediator or a staff member of a center may not be compelled to testify in a judicial or an administrative proceeding with respect to a dispute that has been referred to a center for dispute resolution.
(c) Subsection (a) does not apply to a written agreement or decision provided to the participants, the court, or a prosecuting attorney under section 4(6) of this chapter (or IC 34-4-2.5-9(b) before its repeal).