Iowa Code § 810.15: Return.

Within ten days after the nontestimonial identification procedure, the order shall be returned to the issuing court. The court, the prosecuting attorney, and the person who was the subject of the order, shall be furnished with a written report of the results of any tests or comparisons utilizing the evidence obtained in the authorized procedures. This report shall be disclosed promptly after it becomes available unless the court directs that disclosure be delayed.