Neb. Rev. Stat. § 29-2538: Neb. Rev. Stat. § 29-2538

If a court has suspended the execution of the convicted person pending an investigation as to his or her competency, the date for the enforcement of the convicted person's sentence has passed, and the convicted person is found to be competent, the court shall certify that finding to the Supreme Court which shall appoint a day for the enforcement of the convicted person's sentence.