Neb. Rev. Stat. § 25-1904

The summons mentioned in section 25-1903 shall, upon the written praecipe of the plaintiff in error, or his attorney, be issued by the clerk of the court in which the petition is filed, to the sheriff of any county in which the defendant in error or his attorney of record may be; and if the writ issue to a foreign county, the sheriff thereof may return the same by mail to the clerk, and shall be entitled to the same fees as if the same had been returnable to the district court of the county in which said officer resides. The defendant in error, or his attorney, may waive in writing the issuing or service of the summons.