Nebraska constitution
Article V: judicial
Section 25

For the effectual administration of justice and the prompt disposition of judicial proceedings, the supreme court may promulgate rules of practice and procedure for all courts, uniform as to each class of courts, and not in conflict with laws governing such matters. To the same end, the court may, and when requested by the Legislature by resolution shall, certify to the Legislature its conclusions as to desirable amendments or changes in the general laws governing such practice and proceedings.