Pursuant to Iowa Code sections 17A.13(1) and 156.16, the board is authorized in connection with an investigation of an unlicensed person or establishment to issue subpoenas to compel persons to testify and to compel persons to produce books, papers, records and any other real evidence, whether or not privileged or confidential under law, that the board deems necessary as evidence in connection with the civil penalty proceeding or relevant to the decision of whether to initiate a civil penalty proceeding. Board procedures concerning investigative subpoenas are set forth in rule 481-503.5(17A,272C).
Iowa Admin. Code r. 481-905.4