The bond of every county treasurer shall be held to be security for the payment by such treasurer to the State Treasurer and the several cities, towns, villages, and the proper authorities and persons, respectively, of all taxes and special assessments which may be collected or received by him on their behalf, by virtue of any law in force at the time of giving such bond, or that may be passed or take effect thereafter.
Neb. Rev. Stat. §§ 77-1762