Indiana Code Title 5. State and Local Administration § 5-8-5-4

Sec. 4. (a) If the town council is reasonably satisfied that any circumstance has occurred under IC 36-5-2-6.5(3), the council may, by an affirmative vote of a majority of the members appointed to the body, vote to declare a vacancy in the town council membership.  The member who is alleged to have vacated the member's seat may participate in the meeting as a member, but may not vote on the issue.

(b) If the member who is the subject of the petition or motion does not attend the meeting at which the town council makes the determination that a vacancy exists, the town council shall mail notice of its determination to the member.

(c) If the town council determines that a vacancy exists, the town clerk-treasurer shall give the circuit court clerk notice of the determination not later than five (5) days after the date of the town council's determination.  The circuit court clerk shall give notice to the county chairman if a caucus is required under IC 3-13-11 to fill the vacancy.