SDCL § 11-7-100: Recital in bond conclusive as to purpose.

In any suit, action, or proceeding involving the validity or enforceability of any bond of a commission or the security therefor, any such bond reciting in substance that it has been issued by the commission to aid in financing a project, as defined in § 11-7-1, shall be conclusively deemed to have been issued for such purpose and such project shall be conclusively deemed to have been planned, located, and carried out in accordance with the purposes and provisions of this chapter.