OPINION
¶ 1 In this special action, we are asked to decide whether AR.S. § 12-2203, which governs the admissibility of expert testimony, is constitutional. For the reasons stated below, we accept jurisdiction. But because the respondent judge correctly found the statute usurps the supreme court’s rule-making authority and violates the separation of powers doctrine, we deny relief.
FACTS AND PROCEDURAL BACKGROUND
¶ 2 In the underlying criminal action, petitioner William Lear was charged with continuous sexual abuse of a child, in violation of AR.S. § 13-1417. The victim, Lear’s daughter, apparently delayed reporting the alleged acts and made conflicting statements to various individuals about sexual acts Lear purportedly had engaged in with her. Although at various points she retracted the allegations, she also reasserted them, insisting Lear had molested her.
¶ 3 Real party in interest State of Arizona disclosed its intent to call Wendy Dutton to testify as its expert regarding Child Sexual Abuse Accommodation Syndrome (CSAAS). Dutton has a master’s degree in marriage and family counseling and routinely testifies as an expert about the character traits of child sexual abuse victims. The state anticipates she will testify in this case that: (1) child victims of sexual abuse often delay reporting intrafamilial abuse and the reasons for the delay; (2) child victims of intrafamilial sexual abuse may recant truthful allegations of abuse and the circumstances in which they recant; and (3) children who testify about sexual abuse commonly exhibit the concept of “script memory,” the way in which a child retrieves and processes memories of similar events. The state intends to present Dutton as a “blind expert,” that is, it intends to elicit testimony from her about general characteristics of child sexual abuse victims, not this particular victim. Dutton has had no contact with and has not evaluated this vie *229 tim individually, nor has she reviewed any statements or reports of any kind related to the allegations.
¶ 4 In July 2010, Lear filed a motion to preclude the state from calling Dutton to testify at trial as an expert. Lear asserted in his motion that, “[i]n an effort to adopt the expert witness limitations of
Daubert v. Merrell Dow Pharmaceuticals,
¶ 5 The respondent subsequently issued a lengthy minute entry order in which he agreed with the state that the statute “usurps the [Supreme] Court’s rulemaking authority and violates the separation of powers doctrine.” Quoting our supreme court’s decision in
Logerquist v. McVey,
SPECIAL ACTION JURISDICTION
¶ 6 Both parties urge this court to accept jurisdiction of this special action. We do so for the following reasons. First, the order from which Lear is seeking relief is interlocutory in nature.
See Potter v. Vanderpool,
DISCUSSION
¶ 7 The Arizona Constitution identifies the three branches of government — the
*230
legislative, executive, and judicial — and provides that they “shall be separate and distinct, and no one of such departments shall exercise the powers properly belonging to either of the others.” Ariz. Const, art. III. Among the powers ascribed to the supreme court is the “[pjower to make rules relative to all procedural matters in any court.” Ariz. Const, art. VI, § 5(5). “Rules of evidence ‘have generally been regarded as procedural in nature.’ ”
Seisinger v. Siebel,
¶ 8 “Determining whether a statute unduly infringes on [the supreme court’s] rulemaking power requires analysis of the particular rule and statute said to be in conflict.”
Id.
¶ 10. We must attempt to harmonize the two by construing the statute, “if possible ... so that it does not violate the constitution.”
Readenour v. Marion Power Shovel,
¶ 9 Both before and since the legislature enacted § 12-2203, the admission of expert testimony has been governed by Rule 702, Ariz. R. Evid., and the standard set forth in
Frye
when the testimony related to novel scientific evidence. The rule, entitled “Testimony by Experts,” provides as follows: “If scientific, technical, or other specialized knowledge will assist the trier of fact to understand the evidence or to determine a fact in issue, a witness qualified as an expert by knowledge, skill, experience, training, or education, may testify thereto in the form of an opinion or otherwise.” Under the
Frye
test, trial judges are charged with determining whether a scientific principle has “gained general acceptance” in the relevant scientific community such that an expert, whose testimony is based on that principle, may be regarded as sufficiently reliable to be permitted to testify.
¶ 10 In
Daubert,
the United States Supreme Court interpreted language in Rule 702 of the Federal Rules of Evidence, which at that time was the same as the Arizona rale, and adopted an approach for determining the admissibility of scientific expert testimony that rejected the plain language of the rale and the
Frye
test as the sole criteria. The Court determined that a trial judge must serve as the “gatekeep[er]” for determining the admissibility of expert testimony by deciding first, “whether the expert is proposing to testify to (1) scientific knowledge that (2) will assist the trier of fact to understand or determine a fact in issue.”
*231
¶ 11 In
General Electric Co. v. Joiner,
¶ 12 In
Logerquist,
a majority of the Arizona Supreme Court rejected the
Daubert
trilogy’s
1
interpretation of the federal counterparts to Rules 702 and 703 of the Arizona Rules of Evidence and the test adopted in
Daubert
for determining the admissibility of expert testimony. The court confirmed it would continue to apply
Frye
“when an expert witness reaches a conclusion by deduction from the application of novel scientific principles, formulae, or procedures developed by others,” but found
Frye
“inapplicable when a witness reaches a conclusion by inductive reasoning based on his or her own experience, observation, or research.”
¶ 13 The court also made clear in
Logerquist
that judges still must rule on the admissibility of evidence based on the various rules of evidence, “and when the testimony is based on a novel scientific principle that the witness has taken from others and applied to the case at hand, the judge may, as a matter of foundation, require a showing of general acceptance.”
Id.
¶53. “Thus,” the court concluded, “we retain the
Frye
rule but continue to apply it as described in
[State
v.]
Hummert
[,
¶ 14 The legislature enacted § 12-2203 in May 2010 and it became effective on July 29, 2010. See 2010 Ariz. Sess. Laws, ch. 302, § 1. Entitled, “Admissibility of expert opinion testimony,” it states as follows:
A. In a civil or criminal action, only a qualified witness may offer expert opinion testimony regarding scientific, technical or other specialized knowledge and the testimony is admissible if the court determines that all of the following apply:
1. The witness is qualified to offer an opinion as an expert on the subject matter based on knowledge, skill, experience, training or education.
2. The opinion will assist the trier of fact in understanding the evidence or determining a fact in issue.
3. The opinion is based on sufficient facts and data.
4. The opinion is the product of reliable principles and methods.
5. The witness reliably applies the principles and methods to the facts of the case.
B. The court shall consider the following factors, if applicable, in determining whether the expert testimony is admissible pursuant to subsection A:
1. Whether the expert opinion and its basis have been or can be tested.
*232 2. Whether the expert opinion and its basis have been subjected to peer reviewed publications.
3. The known or potential rate of error of the expert opinion and its basis.
4. The degree to which the expert opinion and its basis are generally accepted in the scientific community.
Agreeing with the state, the respondent judge found the statute “usurps the [Supreme] Court’s rulemaking authority and violates the separation of powers doctrine.” The respondent reasoned the statute does not supplement the rule but, quoting
State v. Robinson,
¶ 15 In determining whether the respondent judge abused his discretion,
see
Ariz. R.P. Spec. Actions 3(c), we consider whether he committed an error of law,
see Potter,
¶ 16 In his special action petition, Lear concedes that, based on the language of the statute and the legislative history, the legislature intended “to adopt the expert opinion standard of
Daubert.”
2
He argues that “because the
Daubert
standard was the result of the U.S. Supreme Court’s construction of an identical Rule 702, there is no conflict between the statute and Rule 702.” He acknowledges this court is bound by the supreme court’s decision in
Logerquist,
but asserts “that opinion bears reexamination especially because it did not address the constitutional separation of powers issues raised in the case at bar.” He urges us “to distinguish
Logerquist
and to join the call for its reconsideration,” citing the decision by Division One of this court in
Lohmeier v. Hammer,
¶ 17 Even were we to agree with Lear that
Logerquist
should be reexamined, it is not for this court to do so; rather, we are compelled to follow supreme court precedent.
See State v. Miranda,
¶ 18 As we must, we adopt our supreme court’s interpretation of Rule 702 and, consequently, construe it “as written and interpreted by our cases.”
Logerquist,
¶ 19 Having adopted the
Daubert
trilogy, as Lear concedes, the legislature has promulgated an evidentiary rule that ascribes to trial judges the kind of broad “gatekeeping” role the court in
Logerquist
opposed when it rejected such an interpretation of its own rule. In this respect, the statute essentially has repealed a rule of evidence.
See Seidel,
¶ 20 Simply because the rule and the statute conflict, however, we do not end our inquiry. As the respondent judge correctly noted, we also must determine whether the statute truly is procedural rather than substantive in nature.
Seisinger,
¶ 21 Similarly, relying primarily on
Seisinger,
this court held in
Pinal County Mental Health No. MH-201000076
that A.R.S. §§ 36-533(B), 36-539(B), and 36-501(14), pertaining to civil commitment proceedings, are not unconstitutional for two reasons. First, they do not conflict with Rules 702 or 703 because they “do not govern the admissibility or relevance of expert testimony.” 226 Ariz 131, ¶ 10,
¶ 22 Section 12-2203, however, is a general rule of evidence that, by its own terms, applies to the admission of expert testimony in “a[ny] civil or criminal action.” § 12-2203(A). As the respondent judge noted, it does not alter any particular substantive law. It “engulfs” and supplants the existing rule with which it conflicts and therefore is unconstitutional because it violates the separation of powers doctrine. Thus, we conclude the respondent did not abuse his discretion in finding the statute unconstitutional on this ground and deciding to permit Dutton to testify based on Rule 702 and Logerquist, rather than § 12-2203. In light of this conclusion, we need not address the propriety of the respondent’s determination that the statute also is unconstitutional because it “impermissibly encroaches on the province of the jury.” See Ariz. Const, art. VI, § 27 (“Judges shall not charge juries with respect to matters of fact, nor comment thereon, but shall declare the law.”).
¶ 23 For the reasons stated herein, we deny Lear’s request for special action relief.
Notes
.
See Lohmeier v. Hammer,
. Although the statute’s plain language makes that intent clear, we note that Lear has provided us with the Arizona Senate Fact Sheet, which expresses that intent unequivocally: the statute ”[r]equires the courts to use the Daubert standard in civil and criminal actions to determine the admissibility of expert opinion testimony.”
