OPINION
¶ 1 The state appeals from the superior court’s ruling in a special action in which the court concluded that maintenance and calibration records for an Intoxilyzer 5000 breath-testing machine are testimonial in nature under
Crawford v. Washington,
BACKGROUND
¶2 The underlying facts are undisputed. Bohsaneurt was cited for driving under the influence of an intoxicant (DUI) while impaired to the slightest degree in violation of A.R.S. § 28-1381(A)(l) and for driving or being in actual physical control of a vehicle with a breath-alcohol concentration of .08 or more within two hours of driving in violation of § 28-1381(A)(2). After those charges were filed in Tucson City Court, Bohsaneurt moved in limine to exclude from evidence the periodic calibration and maintenance records (“quality assurance records” or “QARs”) of the Intoxilyzer 5000 breath-testing device that had been used to test his breath sample. Under A.R.S. § 28-1323(A)(5), those records are a necessary foundational predicate for admission of Bohsaneurt’s breath test results.
¶ 3 In his motion, Bohsaneurt argued the QARs are inadmissible unless he has an opportunity to cross-examine the Tucson Police Department (TPD) Crime Laboratory employee (“QA specialist”) who conducted the *184 calibration and maintenance tests on the Intoxilyzer. Without that opportunity, Bohsancurt argued, admission of the QARs will violate his constitutional rights under the Sixth Amendment’s Confrontation Clause as explained in Crawford. The city court magistrate denied Bohsaneurt’s motion, finding the QARs are “non-testimonial” and “not of a nature that was sought to be protected by the Framers of the Constitution.”
¶ 4 Bohsancurt then obtained a stay of the proceedings and filed a complaint for special action in superior court. In addition to his Crawford argument, Bohsancurt contended the QARs also should be excluded because they constitute inadmissible hearsay. The superior court accepted jurisdiction of the special action, finding that the complaint raised a purely legal issue of first impi*ession in Arizona that is likely to recur. The court concluded that “[u]se of calibration records to lay a foundation for the admission of breath testing results when a witness is unavailable and the Defendant has not had prior opportunity to cross-examine the appropriate declarant ... violates the Confrontation Clause of the Sixth Amendment under Crawford v. Washington.” It further found Bohsancurt’s hearsay argument “not dispositive” because, under Crawford, “if testimonial in nature, the evidence must comport with the Confrontation Clause, regardless of its evidentiary label.”
¶5 The state appeals from that ruling. This court has jurisdiction pursuant to A.R.S. § 12-2101(B) and (E) and Rule 8(a), Ariz. R.P. Spec. Actions, 17B A.R.S.
DISCUSSION
I
¶ 6 The state argues “[t]he lower court erroneously found that Intoxilyzer 5000 periodic maintenance records are testimonial under
Crawford.”
That argument challenges the superior court’s interpretation of
Crawford,
a purely legal issue that we review de novo.
See State v. Parks,
¶7 In
Crawford,
the Supreme Court attempted to reconcile the inherent conflict between the Sixth Amendment’s Confrontation Clause and the various exceptions to the general rule excluding hearsay evidence. The Court overruled
Ohio v. Roberts,
¶8 Emphasizing that “[reliability is an amorphous ... concept,” the Court in
Crawford
found the
Roberts
“framework ... so unpredictable that it failfed] to provide meaningful protection from even core confrontation violations.”
Crawford,
¶ 9 Significantly, the Court in
Crawford
for the first time distinguished between “testimonial” and “nontestimonial” evidence for Sixth Amendment purposes based on its reasoning that the Confrontation Clause “applies to ‘witnesses’ against the accused — in other words, those who ‘bear testimony.’”
Id.
at 51,
¶ 10 The Court adopted an absolute rule when “testimonial” evidence of a witness who does not appear at trial is involved — regardless of reliability, the evidence is inadmissible unless the declarant is unavailable and the defendant had a prior opportunity to cross-examine him or her.
Id.
at 68,
“ex parte in-court testimony or its functional equivalent — that is, material such as affidavits, custodial examinations, prior testimony that the defendant was unable to cross-examine, or similar pretrial statements that declarants would reasonably expect to be used prosecutorially, extrajudicial statements ... contained in formalized testimonial materials, such as affidavits, depositions, prior testimony, or confessions, statements that were made under circumstances which would lead an objective witness reasonably to believe that the statement would be available for use at a later trial,” ... [and][s]tatements taken by police officers in the course of interrogations.
Id.
at 51-52,
¶ 11 The Court held that the “testimonial” characterization “applies at a minimum to prior testimony at a preliminary hearing, before a grand jury, or at a former trial and to police interrogations,”
1
reasoning that “[tjhese are the modern practices with closest kinship to the abuses at which the Confrontation Clause was directed.”
Id.
at 68,
II
¶ 12 We now turn to the question of whether we should extend the Confrontation Clause protection to QARs because they supposedly are “testimonial” evidence and, therefore, inadmissible under Crawford absent an opportunity to cross-examine their author. The documents in question are created pursuant to R9-14-404 of the Arizona Administrative Code, 2 which requires “[l]aw enforcement agencies or individuals ... who *186 conduct alcohol concentration determinations by means of breath-testing devices [to] implement a quality assurance program conducted by a quality assurance specialist.” The rule also directs “Calibration checks of breath testing devices ... [every] 31 days ... [and r]ecords of quality assurance testing, calibration checks, device adjustments, and any maintenance for each device in use.” Ariz. Admin. Code R9-14-404(A)(3), (6).
¶ 13 Based on those rules, quality assurance testing is performed, and the resultant records are created by criminalists employed by TPD. The QARs are then used by the state in DUI prosecutions as foundation for admitting the defendant’s breath test results. See A.R.S. § 28-1323. The applicable statute provides that breath tests conducted on DUI suspects “are admissible as evidence in any trial” as long as five “foundational requirements” are met, the last of which is:
The device used to conduct the test was in proper operating condition. Records of periodic maintenance that show that the device was in proper operating condition at a time before and after the test are admissible in any proceeding as prima facie evidence that the device was in proper operating condition at the time of the test. The records are public records.
§ 28-1323(A)(5) (emphasis added).
¶ 14 As the state points out, the QARs “contain preprinted standard language, and within that standard language, the criminalist fills in the blanks. The blanks include information such as the criminalist’s name, the crime laboratory agency, and the date and time of the function and accuracy tests.” Based on the content of QARs, the state argues those reports “are ... neither of the two clearly delineated types of [testimonial] statements [discussed in Crawford ]: prior ex parte testimony from a preliminary hearing, [ ]or statements taken by police during interrogation.” Therefore, the state posits, “[t]he question necessarily becomes whether the records are of the more ambiguous type of ‘testimonial’ statement” mentioned but not defined in Crawford, which the state urges they are not. Although the QARs are introduced in DUI cases to satisfy the fifth foundational requirement under § 28-1323, the state argues the information contained in those maintenance records “is not testimonial in nature, but is instead the transference of data from an Intoxilyzer 5000 printout onto a preprinted collection form.”
¶ 15 Since
Crawford
was decided, other jurisdictions have grappled with the question of what constitutes “testimonial” evidence in cases like this in which the evidence at issue does not fit neatly into the “core class” discussed by the Supreme Court. A clear majority of courts that have addressed the admissibility of similar quality assurance records for breath-testing machines have held this specific type of evidence is not testimonial.
See, e.g., Rackoff v. State,
¶ 16 In many of those cases, courts found that calibration records are made and maintained in the ordinary course of business and, therefore, fall within a clearly delineated exception to
Crawford
— business records.
See Crawford,
*187
¶ 17 The courts in the foregoing cases looked to legislation or administrative rules, similar to R9-14-404, that require the compilation of records of regular maintenance for various breath-testing devices. Based on such requirements, courts have found the maintenance records are not created in anticipation of litigation, but rather, for the purpose of complying with rules and assuring the accuracy of testing devices, which is a regular course of business.
See Rackoff,
¶ 18 In our view, similar reasoning applies here. Pursuant to R9-14-404, the Intoxilyzer 5000 machines must be tested and the results recorded every thirty-one days, regardless of whether any particular machine is used in connection with a DUI arrest. In other words, regardless of litigation, the QARs must be kept in the ordinary course of business. Bohsaneurt asserts those records constitute “a declaration or affirmation for proving ... the fact that the periodic maintenance was conducted, and the fact that the indicated calibration test results, et al[.], were obtained.” That that may be true and that the records may subsequently be used in DUI prosecutions, however, does not preclude their qualifying as business records.
See Kanhai
¶ 19 Still, Bohsaneurt argues that, even if kept in the regular course of business, the QARs cannot qualify as business records because their “method or circumstances of preparation indicate a lack of trustworthiness.” Ariz. R. Evid. 803(6). He contends bias exists because “the QAR’s are produced by the State for the State’s prosecution of the defendant.” Although the breath-testing machines are calibrated by criminalists employed by TPD, that fact alone is not sufficient to establish bias or inherent untrustworthiness.
¶ 20 We are persuaded by the reasoning of other courts that, because the maintenance records contain factual memorializations generated by a scientific machine,
see Kanhai
¶ 21 We conclude that the QARs qualify as business records under Rule 803(6), Ariz. R. Evid.
4
And, although the legislature has
*188
characterized the maintenance records as “public records,” § 28-1323(A)(5), that classification does not preclude them from also being business records. The essence of a public record is that it is created by a public agency.
See State ex rel. McDougall v. Johnson,
¶ 22 In addition to finding that calibration records qualify as business records, other courts have permitted the admission of such records, without testimony from their preparer, by concluding that the evidence set forth in the records is not “against” any defendant.
See Crawford,
¶ 23 The reasoning and conclusions of those courts make practical sense in light of the historical protections
Crawford
sought to uphold. The Court explored the historical practice of justices of the peace or other court officials questioning witnesses,
ex parte,
and then merely reading the witnesses’ statements into evidence.
See Crawford,
¶24 That the historical concern centered on statements taken by officials who were
prosecuting or investigating
criminal matters supports an inference that only inculpatory evidence required cross-examination. As did the city court magistrate in this case, several courts have concluded that the type of evidence contained in calibration records— primarily abstract data output from a machine with no relationship to a particular defendant — is not the sort of evidence with which the Framers were concerned.
See Napier,
¶ 25 In fact, several of the cases Bohsancurt cites, which hold that various laboratory reports are testimonial, involved reports that were inculpatory in a way that calibration and maintenance records are not.
6
See Smith v. State,
¶26 Moreover, some courts have found other types of laboratory reports, even though related to specific defendants or victims, are not testimonial under
Crawford. See People v. Johnson,
¶27 Arguably, reports analyzing evidence from crime victims or drug samples associated with a specific defendant are actually linked to a specific case and are likely inculpatory. Nonetheless, as noted above, courts have found those types of reports do not fall within the
Crawford
Court’s description of
*190
evils the Confrontation Clause was intended to avoid. In our view, those authorities support our conclusion that QARs, which are business records created from objective, scientific data and which do not relate to any particular defendant or case, are not testimonial. If the Court in
Crawford
intended its description of “testimonial” evidence to include the types of maintenance records involved here, it certainly did not expressly say so and, absent more explicit direction from that Court or our supreme court, we are left with no more than “various levels of abstraction,” an insufficient basis for finding any Sixth Amendment violation.
Crawford,
¶28 We are not persuaded by Bohsancurt’s arguments that the seminal issue under
Crawford
is whether the declarant can reasonably anticipate that his or her statement will likely be used at trial. As noted earlier, the Court’s “core class of ‘testimonial’ statements” included “ ‘statements that were made under circumstances which would lead an objective witness reasonably to believe that the statement would be available for use at a later trial.’ ”
Id.
at 51-52,
¶ 29 We agree with Bohsancurt that QARs undoubtedly are created with an understanding that they may be used in court to verify the working conditions of Intoxilyzers. But we do not think that abstract possibility renders QARs testimonial. The Court in
Crawford
did not specifically emphasize
any
of its stated “formulations” as determinative.
¶ 30 Bohsancurt relies on
United States v. Cromer,
¶31 That cannot be said, however, with respect to the QA specialists who prepare QARs. As noted earlier, the QARs are mandated by administrative rule and created regardless of whether the machine to which the QAR relates is ever used or whether a single defendant is arrested. Moreover, the record does not reflect that a QA specialist has any way of knowing which records may be used in litigation and which will not or that a specialist necessarily intends to bear testimony against any specific defendant. 10
*191
¶ 32 We also find unpersuasive Bohsancurt’s argument that the mere existence of an affidavit renders the QARs testimonial.
11
Other courts have dealt with calibration records that contain affidavits and have concluded, because the affidavit contains no testimony against any particular defendant, and indeed, no reference to any person at all, the affidavit does not render the calibration records testimonial.
See Napier,
¶ 33 Further, although the Court in
Crawford
cited affidavits among its “various formulations” of testimonial material, the Court apparently mentioned affidavits only in two specific contexts, neither of which is presented here. The first type of affidavit the Court considered testimonial was one that is the functional equivalent of ex parte, in-court testimony.
See Crawford,
¶ 34 The second context in which the Court referred to affidavits was “ ‘extrajudicial statements ... contained in formalized testimonial materials, such as affidavits, depositions, prior testimony, or confessions.’ ”
Id.
at 51-52,
¶ 35 Based on our conclusions that QARs are business records and do not contain evidence against individual defendants such as Bohsancurt, we hold the QARs are not testimonial under Crawford. Therefore, the Sixth Amendment does not bar admission of the QARs even though the QA specialist who prepared them is not present in court or subject to cross-examination. 12
*192 III
¶ 36 Although we have determined that the QARs qualify as business records and fall within that exception to the hearsay rule, we must address another hearsay argument raised by Bohsancurt and amicus curiae. Quoting
United States v. Sims,
The following are not excluded by the hearsay rule, even though the declarant is available as a witness:
(8) ... [u]nless the sources of information or other circumstances indicate lack of trust worthiness, records, reports, statements, or data compilations, in any form, of public offices or agencies, setting forth ... (B) matters observed pursuant to a duty imposed by law as to which matters there was a duty to report, excluding, however, in criminal cases matters observed by police officers and other law enforcement personnel ....
Bohsancurt and amicus argue the QARs are not admissible as public records because they include “matters observed by ... law enforcement personnel.”
¶ 37 It is generally recognized that records excluded by Rule 803(8)(B) cannot be admitted through the “back door” as a business record.
See United States v. Cain,
¶38 Bohsancurt cites
United States v. Oates,
[L]ifting and recording is, for a fingerprint examiner, the type of routine daily task that has always been thought to be reliably done under both the business and official records exceptions to the hearsay rule[; t]he adversarial, confrontational risk of misperception and misrecording present at an arrest of a criminal at the scene of the crime is about as far removed from this routine exercise in a police laboratory as it is possible to imagine.
Id.
¶ 39 As noted,
Best
is consistent with decisions of other courts that have scrutinized and severely criticized
Oates. See United States v. Wilmer,
¶ 40 Amicus cites
State v. Meza,
¶ 41 We do not equate the calibration testing and reporting by QA specialists with the type of “observations] by police officers and other law enforcement personnel” that the exclusion in Rule 803(8)(B) addresses.
See Wilmer,
DISPOSITION
¶42 The ruling of the superior court is reversed, and the case is remanded for further proceedings consistent with this decision.
Notes
. The evidence at issue in
Crawford
itself — a tape-recorded statement by the defendant’s wife to the police — clearly fell within that category. During a police interrogation, the wife (an eyewitness to the crimes) made statements that did not support her husband’s self-defense claim against charges of assault and attempted murder.
. Both parties state QARs were previously mandated by the Arizona Department of Health Services but have since become the subject of Department of Public Safety rules. But R9-14-404, Ariz. Admin. Code, falls under the title on "Health Services,” and neither party cites any change to that. In addition, the title in the code on “Public Safety” does not reflect any change. Nonetheless, the focus of our analysis is not dependent on which state agency mandates the QARs, but rather, on which state agency actually conducts the calibration tests and prepares the records and on the essential purpose for which the records are prepared. That the QA specialists are employed by TPD is not disputed.
. Under Rule 803(6), Ariz. R. Evid., 17A A.R.S., a document qualifies as a business record, and is excepted from the hearsay rule even when the declarant is available as a witness, if the document was:
(a) Made at or near the time of the underlying event,
(b) by, or from information transmitted by, a person with first hand knowledge acquired in the course of a regularly conducted business activity,
(c) made and kept entirely in the course of that regularly conducted business activity,
(d) pursuant to a regular practice of that business activity; and
(e) all the above are shown by the testimony of the custodian or other qualified witness, or by certification ....
The rule further provides:
However, such evidence shall not be admissible if the source of information or the method or circumstances of preparation indicate a lack of trustworthiness____
The term “business” as used in this paragraph includes business, institution, association, profession, occupation, and calling of every kind, whether or not conducted for profit.
. At oral argument, Bohsaneurt cited
Palmer v. Hoffman,
. The superior court cited, and Bohsancurt relies heavily on,
Shiver v. State,
.
Compare Perkins v. State,
.
Belvin
has not been released for publication in permanent law reports. "Until released it is subject to revision or withdrawal."
. This case does not require us to reach or decide the specific issues addressed in those cases.
. Bohsancurt cites
People v. Orpin,
. A QA specialist signs and attaches to the forms associated with testing a document that states: "I hereby certify that the above and foregoing is a true and correct copy of the record of periodic maintenance and calibration checks for the Intoxilyzer Model 5000, Serial Number [#####], TPD No. [##], maintained by the Tucson Police Department Crime Laboratory, pursuant to the requirements of the Arizona Department of Health Services.”
. Of course, nothing would prevent a defendant such as Bohsancurt from obtaining and serving a subpoena on a QA specialist, compelling his or her attendance at trial and subjecting the specialist to full examination on whatever QARs are relevant to the case.
.
See also United States v. Rosa,
