Ind. Code § 14-27-6-27

Sec. 27. The board may adopt a draft of an ordinance only at a meeting that is open to the public. Before adopting an ordinance, the board shall give opportunity to a person present at the meeting to give testimony, evidence, or argument for or against the proposed ordinance in person or by counsel under rules that the board adopts concerning the number of persons who may be heard and time limits.