Neb. Rev. Stat. § 23-1704.02: Neb. Rev. Stat. § 23-1704.02

Except when otherwise provided specifically by law for substitute service by a deputy, a sheriff may appoint an employee of his or her department to serve any summons or writ, by endorsement thereon substantially as follows: "I hereby appoint ........ to serve the within writ;" which shall be dated and signed by the sheriff.