¶ 1 The State of Arizona seeks relief from the respondent trial judge’s order in the underlying criminal proceedings against real parties in interest John Erie Rosengren, Andrew Anthony Carrera, and Marissa Ann Rodriguez (the defendants) granting their consolidated requests for a physical inspection of the Tucson City/County Crime Laboratory (Crime Lab) for purposes of observing and videotaping the personnel, equipment, and procedures used in analyzing blood for the presence of intoxicants. Because we conclude that the respondent judge abused his discretion and exceeded his authority in entering the order and because the state has no еqually plain, speedy, or adequate remedy by appeal, we accept jurisdiction and grant relief. Ariz. R.P. Special Actions 1 and 3, 17B A.R.S.;
State v. O’Neil,
Facts and Procedural History
¶ 2 The defendants have each been charged with homicide, committed while driving under the influence of intoxicating substances.
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Samples of their blood were obtained after their accidents and were analyzed at the Crime Lab by gas chromatography. In that method, according to the record before us, a blood sample and certain chemicals are mixed in a vial, creating an “aliquot.” The aliquot is heated, causing portions of the solution to become gaseous and move into the “head space” of the vial. The gas chromatograph extracts part of the gas and sends it through a specially coated “column,” which separates the gaseous substances based on their weight. At thе end of the column, a flame ignites the separated gases, causing an electrical charge that the chromatograph measures. An attached computer generates a graph of the measure-
mente,
¶ 3 The Crime Lab’s teste in these сases showed Rodriguez and Rosengren. had blood alcohol concentrations (BACs) above the legal limit and revealed cocaine and trace amounts of alcohol in Carrera’s blood. The defendants filed separate motions purshant to Rule 15.1(e), Ariz. R.Crim. P., 16A A.R.S., requesting access to the Crime Lab to conduct an “independent audit or evaluation” of its methodology, equipment, and operations on grounds that the state Department of Health Services (DHS) had failed “to carry out its statutorily mandated function of regulating” forensic labs and that the Crime Lab had failed “to follow scientifically acceptable procedures in сonnection with blood analy-ses.” After consolidating the motions, the respondent judge granted the defendants’ requests to inspect and videotape the Crime Lab for “no more than two (2) full working days,” finding “extremely unusual and limited circumstances present herein where the defense has obviously discovered cause to question the lab’s mode of operation pertaining to blood analysis in the recent past.” The judge then granted the state’s request to stay the trials while the state petitioned for special action relief; we have extended the stay on the state’s motion.
Discussion
¶ 4 A trial court has broad discretion over discovery matters, аnd we will not disturb its rulings on those matters absent an abuse of that discretion.
State v. Tankersley,
¶ 5 The state argues that the respondent judge abused his discretion in granting the defеndants’ motions, contending the discovery order is unprecedented, not permitted by the rules of criminal procedure, unsupported by any showing of need, violates the doctrine of separation of powers in attempting to address regulatory concerns, and fails to address a justiciable issue. Moreover, the state argues, the defendants’ blood tests were performed accurately and in compliance with the applicable law, A.R.S. § 28-1326. The state further asserts that denying the defendants access to the Crime Lab will not violate any of their rights and will be in the public’s best interest by avoiding significant disruption to the functioning of the Crime Lab. Finally, thе state argues, the respondent judge’s order opens the door to a flood of similar defense requests to access and occupy the Crime Lab any time forensic evidence is involved in a criminal prоsecution.
¶ 6 In response, the defendants claim the order “finds overwhelming support in the unusual circumstances of this case,” reurging grounds from their motions that DHS conducts no statewide quality assurance program for blood alcohol testing, does not inspect crime laboratories, and relies solely on proficiency testing to evaluate laboratory analysts. The defendants further allege that the Crime Lab used single aliquot tеsting until November 1, 1998, when it adopted the industry standard of double aliquot testing; backdated to November 1, 1998, a January 1999 memorandum to DHS, which stated it had switched to double aliquot testing; used the gas chromatograph in October 1998 when it was not functioning properly; misused pipettes when filling the vials; used test tubes after their expiration dates had passed; and operated the gas chromatograph with improperly high flow rates of chemicals in October 1998.
¶ 7 The state disputes most of these allegations and their relevancy, for example, pointing out that none of the tests at issue was performed while the gas chromatograph was
¶ 8 We have reviewed the numerous exhibits the defendants have submitted, including testimony from an expert defense witness in an unrelated case, which alleged that some of the Crime Lab’s past procedures were deficient. Nothing in the expert’s testimony, however, nor anything else in the defendants’ materials, explains how inspecting the Crime Lab and videotaping its personnel and procedures now would be relevant to these proceedings or would produce additional information for which the defendants have a substantial need to prepare their cases and that cannot be obtained- by other means. See
Tankersley,
¶ 9 The state' points out that the defendants can obtain detailed information about the performance of the tests on their individual blood samples and the relevant testing protocols that were actually used at the time of the defendants’ tests through the regular process of witness interviews and disclosure of documents, much of which appears to have already occurred. The defendants have provided nо evidence, expert or otherwise, that inspecting and videotaping will be more productive than interviews and documents in analyzing and critiquing the Crime Lab’s methods. Cf.
State v. Mauro,
