Neb. Rev. Stat. § 77-2605

The books, records, papers, receipts, invoices, and supply of cigarettes of any person, including wholesale and retail dealers, stamping agents, and persons transporting cigarettes, subject to the provisions of sections 77-2601 to 77-2615 which pertain to the purchase or sale of cigarettes shall be subject to inspection at any time during ordinary business hours by the Tax Commissioner or his or her representatives.