Nebraska Revised Statutes Chapter 25. Courts; Civil Procedure § 25-2159. Peremptory writ; when allowed in first instance

When the right to require the performance of the act is clear and it is apparent that no valid excuse can be given for not performing it, a peremptory mandamus may be allowed in the first instance. In all other cases, the alternative writ must be first issued, except that a peremptory mandamus in the first instance shall not be given in any case involving the delivery of irrigation water if the Chief Water Officer as defined in section 25-1062.01 is a party.