(1) A subpoena requiring the attendance of a witness before the grand jury may be signed and issued by the county attorney, by the lead juror of the grand jury, or by the judge of the district court.
(2) The fees and mileage of witnesses subpoenaed pursuant to this section must be the same as those for witnesses in criminal actions.
(3) All provisions relating to subpoenas in criminal actions apply to subpoenas issued pursuant to this section, including the provisions of Title 46, chapter 15, part 1.