66.4  Bond for costs.
  If the petition for removal is filed by anyone other than the attorney general or the county attorney, the court shall require the petitioners to file a bond in such amount and with such surety or sureties as the court may require, said bond to be approved by the clerk, to cover the costs of such removal suit, including attorney fees, if final judgment is not entered removing the officer charged.
[C35, §1093-e1; C39, §1093.1; C46, 50, 54, 58, 62, 66, 71, 73, 75, 77, 79, 81, §66.4]

Presumption of approval of bond, §636.10