Diaz v. Van Wie
Diaz v. Van Wie
Opinion of the Court
¶ 1 Oswaldo Diaz, Jr., who faces prosecution for aggravated driving under the influence ("DUI"), seeks special-action relief from the superior court's refusal to suppress blood evidence obtained under A.R.S. § 28-1388(E) 's "medical-draw exception" to the Fourth Amendment's warrant requirement.
¶ 2 We accept jurisdiction and grant relief. Our supreme court's additions to § 28-1388(E) 's express requirements make clear that the medical-draw exception for seizure of blood samples requires a showing of exigent circumstances. And it is well-established that this showing must demonstrate an imminent risk of destruction of blood-alcohol evidence beyond that posed by the natural evanescence of alcohol in the bloodstream-a circumstance that will rarely be present when the state seeks to effect a warrantless seizure of an already-preserved blood sample. Here, no exigent circumstances were present, and the test results from the improperly seized blood sample therefore must be suppressed.
FACTS AND PROCEDURAL HISTORY
¶ 3 On March 7, 2016, at approximately 6:42 p.m., a witness discovered a vehicle crashed into a business's entry gate, with the engine still running. Diaz, the driver, was the vehicle's sole occupant. The witness saw Diaz *1216turn off the engine and slump over the steering wheel.
¶ 4 Fire department personnel extracted Diaz and, finding him unresponsive with no visible trauma, placed him in an ambulance for transport to a hospital. Diaz was still unresponsive when he arrived at the hospital, and medical imaging revealed no trauma. Medical personnel determined that he was stable, but intubated him and placed him on a breathing machine while they worked to determine the cause of his unresponsive state and decide how to treat him. Hospital personnel also drew blood for medical purposes, and stored it securely. A nurse noticed the odor of alcohol on Diaz's breath and person.
¶ 5 Police were advised of all the foregoing, and of the fact that medical personnel had drawn blood from Diaz for medical purposes. Without attempting to obtain a warrant, a police officer took custody of the blood at approximately 7:38 p.m. The state eventually tested the blood for its alcohol content, and thereafter charged Diaz with aggravated DUI under A.R.S. §§ 28-1381 and -1383. Diaz seeks special-action relief from the superior court's denial of his motions seeking suppression of the blood evidence.
JURISDICTION
¶ 6 We accept special-action jurisdiction because Diaz's petition presents a purely legal issue of statewide importance that is likely to recur. Vo v. Superior Court (State ) ,
DISCUSSION
¶ 7 The Fourth Amendment protects the people from unreasonable searches and seizures by the government; a warrantless search is reasonable only if authorized by a recognized exception to the warrant requirement. Missouri v. McNeely ,
¶ 8 In blood-alcohol cases, the Fourth Amendment may be implicated at three stages: "(1) the physical intrusion into [the] body to draw blood, (2) the exercise of control over and the testing of the blood sample, and (3) obtaining the results of the test." State v. Hardy ,
¶ 9 Arizona law contains a "medical-draw exception" that authorizes the warrantless seizure of certain blood samples drawn by private actors. A.R.S. § 28-1388(E) provides:
Notwithstanding any other law, if a law enforcement officer has probable cause to believe that a person has violated § 28-1381 and a sample of blood, urine or other bodily substance is taken from that person for any reason, a portion of that sample sufficient for analysis shall be provided to a law enforcement officer if requested for law enforcement purposes.
The statute, of course, cannot trump the Fourth Amendment. In State v. Cocio , the Arizona Supreme Court relied on Fourth Amendment jurisprudence to graft an exigency requirement onto § 28-1388(E) 's substantially similar statutory predecessor.
¶ 10 The third and fourth Cocio and Nissley requirements establish that the Fourth Amendment analysis begins post-draw because the draw itself is the result of medical activities, not state action. The first and second Cocio and Nissley requirements, by contrast, define the substantive standard for a warrantless seizure of the already-drawn sample: probable cause plus exigency.
¶ 11 In 2013, the United States Supreme Court made clear in McNeely that the natural evanescence of alcohol in the bloodstream does not establish a per se exigency.
¶ 12 We note that nothing prevents the state from requesting that medical personnel preserve already-drawn blood in a form that will permit subsequent testing. But the fact that the blood can be preserved in that manner highlights why the warrant requirement is a practical means of obtaining blood samples that have been legitimately secured by medical personnel for medical purposes.
¶ 13 Here, the state acknowledges that "the record does not demonstrate exigency for the officer's warrantless taking" of blood that "had already been drawn and preserved in vacutainers by medical personnel." The state contends, however, that Diaz's medical state created an exigency because he could have been treated with blood-content-altering medication, or he could have been rendered unavailable by surgery. The state thus argues that "where exigent circumstances would have permitted the officer to direct [a new/second] blood draw without a warrant, allowing the officer to seize a portion of blood from an already-drawn medical sample[ ] only serves to minimize the intrusion to the defendant by eliminating a second invasion of his veins."
¶ 14 The state's argument is unpersuasive because there would be no need for a second blood draw absent a risk that the already-drawn sample would not be available to the state after obtaining a warrant. And if there were such a risk, that risk would presumably constitute an exigent circumstance justifying a warrantless seizure of the already-drawn blood sample. Either way, there would be no need to "minimize the intrusion to the defendant" by eliminating a second blood draw.
¶ 15 Finally, we note that under the good-faith exception to the warrant requirement,
¶ 16 After McNeely , therefore, Cocio could not reasonably be understood to permit a per se exigency standard in medical-draw cases. See Nissley , 241 Ariz. at 330-31, ¶¶ 11-12,
¶ 17 Because the state did not obtain a warrant to seize Diaz's blood sample, and because there were no exigent circumstances justifying the seizure, the test results from the improperly-seized sample must be suppressed.
CONCLUSION
¶ 18 We accept jurisdiction and grant relief. The improperly-obtained blood evidence must be suppressed.
We assume for purposes of our analysis that probable cause existed to believe that Diaz had committed DUI.
The state did not raise the good-faith exception in the superior court proceedings or in its response to Diaz's petition for special action. We suasponte ordered the parties to address the good-faith exception at oral argument. We raised the issue because we are required to consider whether there are any legally correct grounds for the superior court's decision. See State v. Boteo-Flores ,
Citing Cocio , which held that "[o]nce physical evidence has been validly seized, it may be tested,"
We note that, if medical personnel retained any additional blood samples from Diaz, nothing prevents the state from seeking a warrant to conduct testing on those samples.
Case-law data current through December 31, 2025. Source: CourtListener bulk data.