Indiana Code Title 36. Local Government § 36-8-3.5-15

Sec. 15. (a) The commission shall adopt rules for determining a performance rating.  The rules must require that a performance rating be made at least once every six (6) months for each member of the department, including probationary members.  The rating shall be made by one (1) or more of the member's superiors, as defined in the commission's rules.  Probationary members shall be rated in the same manner as other members of the department.  The ratings shall be submitted to the chief of the department and kept on file in the chief's office under the chief's supervision.  The chief shall notify each member in writing of the rating that the member received.

(b) A member who is aggrieved with the performance rating given to the member by the member's superior may appeal to the commission for a review of the rating.  The appeal must be filed within ten (10) days after notice of the rating has been sent to the member. The commission shall either affirm or correct the rating.