453B.11  Examination of records by director — subpoenas.
  For the purpose of determining whether or not the dealer should have paid taxes, determining the amount of tax that should have been paid, or collecting any taxes under this chapter, the director may examine, or cause to be examined, any books, papers, records, or memoranda that may be relevant to making such determinations, whether the books, papers, records, or memoranda are the property of or in the possession of the dealer or another person. The director may require the attendance of any person having knowledge or information that may be relevant, compel the production of books, papers, records, or memoranda by persons required to attend, take testimony on matters material to the determination, and administer oaths or affirmations. Upon demand of the director or an examiner or investigator, the court shall issue a subpoena for the attendance of a witness or the production of books, papers, records, or memoranda. The director may also issue subpoenas. Disobedience of subpoenas issued under this chapter is punishable by the district court of the county in which the subpoena is issued, or if the subpoena is issued by the director, by the district court of the county in which the party served with the subpoena is located, in the same manner as a contempt of court.
  The director may petition the district court or a magistrate for an administrative search warrant as authorized by section 808.14 to execute a distress warrant authorized by section 422.26.
90 Acts, ch 1251, §47
C91, §421A.11
C93, §453B.11