            IN THE COURT OF CRIMINAL APPEALS
                        OF TEXAS
                                      NO. PD-1873-11



                                 THE STATE OF TEXAS

                                              v.

                             CARLOS ESPARZA, Appellee

         ON APPELLEE’S PETITION FOR DISCRETIONARY REVIEW
                FROM THE EIGHTH COURT OF APPEALS
                          EL PASO COUNTY

             H ERVEY, J., filed a concurring opinion in which K ELLER, P.J., and
K EASLER, J., joined.

                                       OPINION

       Although I concur in the judgment of the Court, I join Presiding Judge Keller’s

opinion based on the reasoning employed therein. I write separately, however, to express

particular concern with the timidity of the majority opinion in failing to recognize the

authority of the trial court as the gatekeeper for questions of admissibility, including

forensic science.

       While ultimately the proponent of scientific evidence bears the burden of proving
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reliability by satisfying the criteria set forth in Kelly v. State, 824 S.W.2d 568, 573 (Tex.

Crim. App. 1992), it is the trial court that must conduct the hearing and determine

whether the proponent has established that criteria. See id. at 572–73 & n.10 (“Under

Rule 104(a) and (c) and Rule 702, all three [Kelly] criteria must be proven to the trial

court, outside the presence of the jury, before the evidence may be admitted[,]” and “Rule

104(a) requires that the admissibility of expert testimony be determined by the trial

court.”).

       Today, Judge Price, writing for the majority, states that

       Whether at trial or in a pretrial hearing, the State . . . can, of course, be
       made to satisfy its burden to demonstrate reliability. But it is not called
       upon to satisfy that burden unless and until the appellee . . . has made a
       specific objection that those test results are scientifically unreliable or
       (perhaps) until the trial court, in its capacity as the gatekeeper of the
       admissibility of scientific evidence, should sua sponte call upon [the State]
       to do so.

Maj. Op. at 10 (emphasis added). In Jackson, an opinion also authored by Judge Price,

this Court emphasized that “before scientific evidence may be admitted, the trial court

must conduct a hearing outside the presence of the jury to determine whether the

proponent has established all three criteria.” Jackson v. State, 17 S.W.3d, 554, 670 (Tex.

Crim. App. 2000) (emphasis added) (citing Kelly, 824 S.W.2d at 573).

       Today the majority implies that a trial court may be incapable of sua sponte

inquiring into the admissibility of scientific evidence in its role as gatekeeper. This is

dangerous and could have a chilling effect on trial judges who would have otherwise
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fulfilled their contemplated obligation to prevent the admission of “junk” science. The

implications of this concern are far reaching.

       If a trial court cannot sua sponte inquire into the admissibility of scientific

evidence under Rule 702, as would be evident from the dictates of Daubert, Kelly, and

their progeny, a criminal defendant could be convicted based on “junk” science simply

because he or she had an attorney who failed to challenge the proffered evidence or

inadequately challenged it, and the jury would be none the wiser because it never knew

that the science that it relied on to reach its verdict was junk. See id. The real losers of this

decision will be criminal defendants convicted on “junk” science; the residents of the

convicting county; the people that expended time, effort, and money at the original trial;

and the State of Texas. And to add insult to injury, these results are possible only because

of the majority’s unfortunately inconsistent language with respect to Rule 702.

       Forcing a trial court to abdicate its role as the gatekeeper of scientific evidence

creates problems not only at trial but also on appeal because this Court has decided that

an appellate court is limited to the appellate record and cannot supplement a bare record

with its own research or by taking judicial notice of the “correct” science on a bare

record.1 See Hernandez v. State, 116 S.W.3d 26, 31–32 (Tex. Crim. App. 2003) (per



       1
         In Judge Keasler’s dissent in Hernandez, which I joined, we agreed that the appropriate
standard of review for the admission of scientific evidence was a bifurcated standard rather than
an abuse-of-discretion review. See Hernandez, 116 S.W.3d at 49 (Keasler, J., dissenting, joined
by Hervey, J.). That is, appellate courts should review a trial court’s credibility determinations
for an abuse of discretion but the validity of the science de novo. Id.
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curiam) (“Although appellate courts may take judicial notice of other appellate opinions

concerning a specific scientific theory or methodology in evaluating a trial judge’s

Daubert/Kelly ‘gatekeeping’ decision, . . . judicial notice on appeal cannot serve as the

sole source of support for a bare trial court record concerning scientific reliability.”).

       Because I believe that Presiding Judge Keller offers a more compelling analysis

for the disposition of this case, and with my other comments respecting a trial court’s

gatekeeping function, I respectfully concur in the judgment of the Court.

                                                           Hervey, J.

Filed: October 30, 2013.

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