468 N.W.2d 594 STATE OF NEBRASKA, APPELLEE, v. CHESTER L. DOYLE, APPELLANT. No. 89-859.Supreme Court of Nebraska. Filed April 25, 1991. 1. Juvenile Courts: Jurisdiction: Waiver: Pleas: Appeal and Error. A voluntary plea of guilty following the denial of a motion to waive jurisdiction to the juvenile court does not preclude a challenge to such […]