Wis. Stat. § 61.22: Official bonds; officers not to be sureties.

Every bond required of a village officer shall be executed with sufficient sureties in a sum fixed by the village board when not otherwise prescribed and be approved by the president. Whenever the village board deems any bond insufficient they may require an additional bond to be executed and filed in a sum and within a time not less than 10 days, to be fixed by them. The village board may provide a schedule or blanket bond that includes any or all village officers or officials.