Indiana Code Title 36. Local Government § 36-10-3-27

Sec. 27. (a) In order to raise money to pay all bonds issued under section 24 of this chapter, the board shall levy annually a special tax upon all of the real and personal property located in the district sufficient to pay the principal of the bonds as they mature, including accrued interest.  The board shall have the tax to be levied each year certified to the auditor of the county in which the district is located at the time for certification of tax levies.  The tax shall be collected and enforced by the county treasurer in the same manner as other taxes are collected and enforced.

(b) As the tax is collected, it shall be accumulated and kept in a separate fund to be known as the park district bond fund.  The tax shall be applied to the payment of the district bonds and interest as they mature and may not be used for another purpose.