Neb. Rev. Stat. § 33-120: Neb. Rev. Stat. § 33-120

The clerks of the Supreme Court and of each district court, the county judge, sheriff, constable, register of deeds, and county clerk may in all cases require the party for whom any service is to be rendered to pay the fees in advance of the rendition of such service, or give security for the same to be approved by the officer.