Ariz. R. Crim. P. 12.10
Rule 12.10. Preservation of Grand Jury Evidence
(a) Transmittal. The foreperson must transmit all physical evidence, including records, presented to or considered by the grand jury to the superior court clerk. The clerk must preserve the evidence and make it available for inspection and viewing by the State, the court, and the defendant. (b) Release or Retention. Nothing in this rule is intended to abrogate any right of a person under applicable law to possess or regain custody of physical evidence, but the court must impose limitations on access, use, transport, care, and disposal as necessary to ensure that the evidence is preserved.