Neb. Rev. Stat. § 29-3306: Neb. Rev. Stat. § 29-3306

A copy of the order shall be given to the individual at the time it is served on him. No more than thirty days after the identification procedures have been carried out, a return of the order shall be made to the issuing court setting forth the type of evidence taken. Where the order is not executed, a return so indicating shall be filed within thirty days of its issuance.