Luis Enrique Veliz v. State , 2015 Tex. App. LEXIS 8631 ( 2015 )


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  • Reversed and Remanded and Opinion filed August 18, 2015.
    In The
    Fourteenth Court of Appeals
    NO. 14-14-00057-CR
    LUIS ENRIQUE VELIZ, Appellant
    V.
    THE STATE OF TEXAS, Appellee
    On Appeal from County Criminal Court at Law No. 2
    Harris County, Texas
    Trial Court Cause No. 1892229
    OPINION
    Appellant Luis Enrique Veliz appeals his conviction for driving while
    intoxicated.    Appellant contends the trial court erred in admitting retrograde
    extrapolation testimony because the State failed to demonstrate by clear and
    convincing evidence that the analysis of the testifying expert reliably assessed
    appellant’s blood alcohol concentration at the time he was stopped. We agree that
    the trial court erred in admitting the retrograde extrapolation testimony and hold
    that the error affected appellant’s substantial rights. We therefore reverse and
    remand for a new trial.
    BACKGROUND
    In the early morning hours of April 26, 2013, appellant was arrested for
    driving while intoxicated. Officer Joel Quezada of the Houston Police Department
    testified that at approximately midnight, he observed a truck with no taillights.1
    According to Quezada, the truck drifted into another lane. Quezada activated the
    overhead lights on his police car and pulled over the driver. Quezada asked the
    driver for his license and proof of insurance. Quezada testified that during this
    exchange, he smelled alcohol coming from inside the truck. He further observed
    that appellant slurred his speech and “had red glassy eyes.”                     Quezada asked
    appellant if he had been drinking, and appellant replied that he had consumed two
    beers.        Quezada stated that he asked appellant to step out of the truck, and
    appellant stumbled while doing so. Quezada clarified that appellant was not falling
    but rather grabbed onto the truck for support.
    Officer Quezada then conducted two field sobriety tests. The first test was
    the horizontal gaze nystagmus (“HGN”) test, and the second test was the one-leg
    stand test.         On the HGN test, appellant exhibited six clues of intoxication.2
    Quezada testified that during the one leg-stand test,3 appellant swayed, used his
    1
    He testified that it was a Ford F-150.
    2
    Queazada testified that there are four components to the HGN test, including the vertigo
    HGN, but he only testified to the results of the first three. The first component is lack of smooth
    pursuit, the second is sustained or distinct nystagmus at maximum deviation, and the third
    component is onset of nystagmus prior to 45 degrees.
    3
    Quezada testified that appellant indicated he had problems with his legs. During the one
    leg stand, an individual must lift one leg approximately six inches off the ground, and while
    doing so, look at his or her foot, and count out loud in the following manner: one thousand one,
    one thousand two, etc. The test assesses an individual’s mental faculties by requiring them to
    pay attention to the instructions, and it assesses their physical faculties by requiring them to lift
    one foot and maintain balance.
    2
    arms for balance, and dropped his foot. To Quezada, these movements indicated
    appellant was intoxicated.
    Quezada arrested appellant and took him to the station. Quezada stated that
    although there is a third standard field sobriety test, he did not subject appellant to
    the third test because he wanted to capture it on video and he did not have a video
    recorder in his car at that time. Once at the station, however, appellant refused to
    submit to any further sobriety tests and refused to provide a breath or blood
    sample.
    Quezada then obtained a search warrant and took appellant to Memorial
    Hermann Hospital for a blood draw.            Diana Feng, a registered nurse, drew
    appellant’s blood at 3:32 a.m. Quezada testified that, based on his training and
    experience, he believed appellant was intoxicated that night.
    Dwan Wilson, a criminalist for the Houston Police Department Crime
    Laboratory, also testified at trial.    She stated the results of the blood draw,
    contained in State’s Exhibit 7, demonstrated appellant had a blood alcohol
    concentration of .081 grams per 100 milliliters of blood at the time of the draw.
    She provided retrograde extrapolation testimony. She asserted that an individual
    with a .081 blood alcohol concentration at 3:32 a.m. would have a blood alcohol
    concentration between .095 and .0124 at 12:05 a.m., the time appellant was pulled
    over.
    Appellant was convicted of operating a motor vehicle while intoxicated.
    This appeal followed.
    ANALYSIS
    In his second issue, appellant challenges the trial court’s ruling admitting
    Wilson’s retrograde extrapolation testimony.        Appellant asserts that Wilson’s
    3
    testimony is unreliable under the criteria set forth in Mata v. State, 
    46 S.W.3d 902
    (Tex. Crim. App. 2001).
    I.    Appellant preserved his challenge to the admission of retrograde
    extrapolation testimony for appellate review.
    The State argues appellant failed to preserve his second issue for our review.
    The State concedes that appellant objected once to Wilson’s retrograde
    extrapolation testimony, but it argues that the testimony also came in later without
    objection. See Lane v. State, 
    151 S.W.3d 188
    , 193 (Tex. Crim. App. 2004) (“[T]o
    preserve error in admitting evidence, a party must . . . object each time the
    inadmissible evidence is offered or obtain a running objection. An error . . . in the
    admission of evidence is cured where the same evidence comes in elsewhere
    without objection.”). We disagree.
    The State points to an exchange between the prosecutor and Wilson in which
    the prosecutor asked: “So based on your experience and training and the results of
    this blood test, do you have an opinion as to whether the defendant was intoxicated
    at the time of driving?” Wilson replied that she did have an opinion and stated that
    her “opinion [was] the result given in the case which . . . was .081 grams per one
    hundred milliliters of blood.”
    This testimony is not retrograde extrapolation testimony because Wilson did
    not answer the question the prosecutor asked. Rather, she testified about the result
    of an alcohol concentration test of appellant’s blood—that is, the concentration of
    alcohol in appellant’s blood at the time it was drawn. Because appellant did object
    before Wilson gave her retrograde extrapolation opinion about the alcohol
    concentration of appellant’s blood at the time of the stop, we conclude appellant
    preserved this issue for our review. See Tex. R. App. P. 33.1(a).
    4
    II.   The trial court abused its discretion in admitting Wilson’s retrograde
    extrapolation testimony.
    We review the trial court’s decision to admit scientific evidence for an abuse
    of discretion. Russeau v. State, 
    171 S.W.3d 871
    , 881 (Tex. Crim. App. 2005).
    Under an abuse of discretion standard, we should not disturb the trial court’s
    decision if the ruling was within the zone of reasonable disagreement. Tillman v.
    State, 
    354 S.W.3d 425
    , 435 (Tex. Crim. App. 2011).
    An expert witness may testify as to his opinion based on scientific
    knowledge if it will help the trier of fact understand the evidence or determine a
    fact in issue. Tex. R. Evid. 702. To show that the opinion would be helpful, the
    party offering the scientific evidence must (among other things) demonstrate by
    clear and convincing evidence that the evidence is reliable. Jackson v. State, 
    17 S.W.3d 664
    , 670 (Tex. Crim. App. 2000). Reliability may be established by
    showing (1) the validity of the underlying scientific theory; (2) the validity of the
    technique applying the theory; and (3) the proper application of the technique on
    the occasion in question. Kelly v. State, 
    824 S.W.2d 568
    , 573 (Tex. Crim. App.
    1992).
    Retrograde extrapolation testimony is computation of a person’s blood
    alcohol level at the time of driving based on the alcohol level found in blood that
    was drawn some time later. See 
    Mata, 46 S.W.3d at 908
    –09. In Mata, the Court
    of Criminal Appeals held that retrograde extrapolation can be reliable if certain
    factors are known. 
    Id. at 916.
    A paramount consideration is the expert’s ability to
    apply the science and explain it with clarity. 
    Id. The expert
    must recognize the
    subtleties of the science and the difficulties associated with any retrograde
    extrapolation. 
    Id. The expert
    also must be able to apply the science clearly and
    consistently. 
    Id. 5 In
    assessing the reliability of retrograde extrapolation evidence, courts must
    consider:
    (a) the length of time between the offense and the test(s) administered;
    (b) the number of tests given and the length of time between each test;
    and (c) whether, and if so, to what extent, any individual
    characteristics of the defendant were known to the expert in providing
    his extrapolation.
    
    Id. Relevant personal
    characteristics may include weight and gender, the person’s
    typical drinking pattern and tolerance for alcohol, how much alcohol the person
    had to drink on the day in question, what the person drank, the duration of the
    drinking, the time of the last drink, and how much and what food the person had
    consumed before, during, or after the drinking. 
    Id. The expert
    need not know
    every single personal fact about the defendant, however, in order to produce a
    reliable extrapolation. 
    Id. Otherwise, no
    valid extrapolation could ever occur
    absent the defendant’s cooperation, as a number of facts known only to the
    defendant are vital to the process. 
    Id. Appellate courts
    must balance these factors
    to determine whether the trial court abused its discretion. 
    Id. at 917.
    The Court of Criminal Appeals set forth the following balancing guidelines:
    If the State had more than one test, each test a reasonable length of
    time apart, and the first test [was] conducted within a reasonable time
    from the time of the offense, then an expert could potentially create a
    reliable estimate of the defendant’s [blood alcohol concentration] with
    limited knowledge of personal characteristics and behaviors. In
    contrast, a single test conducted some time after the offense could
    result in a reliable extrapolation only if the expert had knowledge of
    many personal characteristics and behaviors of the defendant.
    Somewhere in the middle might fall a case in which there was a single
    test a reasonable length of time from the driving, and two or three
    personal characteristics of the defendant were known to the expert.
    
    Id. at 916–17.
    In Mata, the Court of Criminal Appeals concluded the trial court abused its
    6
    discretion in admitting retrograde extrapolation testimony because the expert
    provided many inconsistent answers, relied on a single test of blood alcohol
    concentration administered over two hours after Mata was pulled over, and could
    not identify a “single personal characteristic of Mata—he did not know whether
    Mata had eaten anything that night and if so, how much; how much Mata had had
    to drink; what Mata had been drinking; when Mata’s last drink was [consumed];
    the length of Mata’s drinking spree; or even Mata’s weight.” 
    Id. at 917.
    In this case, there was only one test, conducted three-and-a-half hours after
    the stop. Drawing blood “over two hours after the alleged offense” to test its
    alcohol concentration is a “significant length of time [that] seriously affects the
    reliability of any extrapolation.” 
    Id. In addition,
    Wilson did not know many of appellant’s characteristics. In
    arguing that Wilson knew enough about appellant to satisfy Mata, the State points
    to an exchange during the voir dire of Wilson outside the presence of the jury, in
    which appellant’s attorney asked what information the State had given her in
    preparation for trial. Wilson answered that she “was given information about the
    time of the stop, if the [appellant] ate anything, the weight, the height, [and] the
    concentration at the time of the test.” Later questioning undermined this answer,
    however. Appellant’s attorney responded: “Let’s take them one at a time.” He
    asked if Wilson had information about the time of the stop, and she said yes. After
    Wilson was given a copy of her extrapolation sheet, the attorney continued:
    Q.     What does it say for the drinking pattern?
    A.     Nothing.
    ...
    Q.   . . . [W]hat does it indicate [for how much alcohol the defendant
    consumed that day]?
    7
    A.     Two drinks.
    Q.     What kind of drinks?
    A.     Beer.
    Q.     Do you have the time of the first drink?
    A.     No.
    Q.     Do you have the time of the last drink?
    A.     No.
    Q.   Do you have information as to whether or not [appellant] had
    consumed food or was operating his vehicle on an empty stomach?
    A.     No.
    ...
    Q.    Are you familiar with the Mata characteristics for retrograde
    extrapolation?
    A.     No.
    Appellant’s counsel subsequently asked: “If you don’t have extrapolation facts,
    such as time of first drink, time of last drink, number of drinks, [and whether
    appellant had a] full or empty stomach, how can we factually say whether the
    person was at [a phase of eliminating alcohol from his system] at the time of the
    stop?” Wilson responded: “Because you can take the time between the time of the
    stop and the time of the blood draw, and since the absorption [of alcohol] could
    take anywhere from 30 minutes to two hours, if the time was greater than two
    hours, you can perform an extrapolation.” She later conceded, however, that she
    could not perform an extrapolation if the person had consumed a drink shortly
    before driving and was still absorbing the alcohol at the time of the stop.
    Finally, Wilson asserted that “[y]ou don’t necessarily have to know the last
    8
    drink to perform a retrograde extrapolation,” and that she could perform retrograde
    extrapolation based simply on the time of the stop and the time of the draw. Under
    Mata, however, that is incorrect. 
    Id. at 916
    (delineating factors necessary to
    conduct retrograde extrapolation). These exchanges demonstrate that Wilson did
    not understand the “subtleties of the science” nor the “risks inherent in any
    extrapolation.” 
    Id. When the
    jury returned, the State likewise did not ask Wilson to take the
    Mata factors into account. The State asked: “So if I gave you a hypothetical
    situation where someone had—was stopped at 12:05 a.m., their blood was drawn at
    3:32 a.m., and their concentration—blood alcohol concentration—at the time of the
    draw was .081 grams per one hundred milliliters, what would their alcohol
    concentration, what would be the range of their blood alcohol concentration at the
    time of the stop?” After the trial court overruled appellant’s objection, Wilson
    replied: “Based on the two assumptions that the individual is in the elimination
    phase and eliminates [at] a normal rate of .01 to a .03 grams per one hundred liters
    of blood, alcohol concentration at the time of the stop can range from a .095 to a
    0124 [sic].”4 See Douthitt v. State, 
    127 S.W.3d 327
    , 334–35 (Tex. App.—Austin
    2004, no pet.) (noting none of Mata factors were included in State’s hypothetical
    and concluding that trial court abused its discretion in admitting retrograde
    4
    The State argues that this calculation is accurate and cites Morris v. State, 
    214 S.W.3d 159
    (Tex. App.—Beaumont 2007), aff’d, 
    301 S.W.3d 281
    (Tex. Crim. App. 2009). In Morris,
    however, the expert used several factors favoring the defendant in calculating the retrograde
    extrapolation: the expert used a .015 elimination rate, which is in the lower range; he assumed
    that the defendant had not fully absorbed his last drink at the time of the accident, even though
    he could have assumed that the defendant had fully absorbed all alcohol; he explained to the trial
    court and the jury that calculating retrograde extrapolation “takes a number of variables into
    account, and the result is an estimate that had a potential error of plus or minus twenty percent,”
    and he agreed that his calculations depended on the accuracy of the blood test. 
    Id. at 179.
    The
    court thus concluded that the expert clearly explained the science and its application to the trial
    court and jury in a manner that allowed the trial court to assess the reliability of his testimony.
    
    Id. As is
    evident from our discussion, those factors are not present here.
    9
    extrapolation testimony).
    Wilson also failed to apply the science and explain it with clarity. See 
    Mata, 46 S.W.3d at 916
    . The State asked: “How does someone’s blood alcohol level
    change after they’ve had let’s just say two beers?” Wilson responded that the
    blood alcohol level declines because a person begins eliminating the alcohol. She
    did not allow for the rise in a person’s blood alcohol concentration following
    consumption.    See 
    id. at 909
    (“At some point after drinking has ceased, the
    person’s BAC will reach a peak. After the peak, the BAC will begin to fall as
    alcohol is eliminated from the person’s body.”). Wilson repeated some of the
    assertions she made during voir dire, stating that to determine a person’s alcohol
    concentration she would need to know only the time of the stop, the time of the
    blood draw, and the results of alcohol testing on the blood drawn. She testified
    that her calculation assumed the person consumed the last drink at the time of the
    stop and that the person was absorbing alcohol for two hours after the stop.
    According to Wilson, this assumption gave appellant every benefit of the doubt.
    On cross-examination, Wilson conceded that her retrograde extrapolation
    testimony was based on the assumption that appellant was in the elimination phase
    at the time he was pulled over. She then reiterated, however, that her calculation
    assumed appellant was absorbing for the next two hours. In other words, she
    contradicted herself, undermining the assertion that she had given appellant every
    benefit of the doubt. She admitted appellant had to be in the elimination phase at
    the time of the stop in order for her to extrapolate his blood alcohol level
    accurately, but she also admitted that her extrapolation was based on the
    assumption that appellant was absorbing alcohol for two hours afterward.
    In sum, Wilson did not explain her calculations or the science with clarity.
    She could identify few, if any, “personal characteristic[s] of [appellant]—[she] did
    10
    not know whether [appellant] had eaten anything that night and if so, how much.”
    
    Id. at 917.
       She did not know “what [appellant] had been drinking; when
    [appellant]’s last drink was [consumed]; the length of [appellant]’s drinking spree;
    or even [appellant]’s weight.” 
    Id. She knew
    the time of the stop, the time of the
    draw, the result of the draw, and appellant’s claim that he had two beers. With only
    this information and one test administered three-and-a-half hours after the stop,
    admitting Wilson’s extrapolation testimony was error under Mata, especially given
    that she had no idea whether appellant was eliminating or absorbing alcohol when
    he was pulled over. We hold the State failed to prove by clear and convincing
    evidence that Wilson’s retrograde extrapolation was reliable.          The trial court
    therefore abused its discretion in admitting the testimony.
    III.   The record does not establish that the error had but a slight effect.
    We next turn to the question of harm.           The erroneous admission of
    retrograde extrapolation testimony is non-constitutional error. Bagheri v. State,
    
    119 S.W.3d 755
    , 762–63 (Tex. Crim. App. 2003); Owens v. State, 
    135 S.W.3d 302
    , 310 (Tex. App.—Houston [14th Dist.] 2004, no pet.). We must disregard
    such error if it does not affect substantial rights. Tex. R. App. P. 44.2(b).
    An error does not affect substantial rights if, after examining the record as a
    whole, an appellate court has fair assurance that the error did not influence the jury
    or had but a slight effect. Solomon v. State, 
    49 S.W.3d 356
    , 365 (Tex. Crim. App.
    2001). The reviewing court should consider the entire record, including testimony
    and physical evidence, jury instructions, the State’s and defendant’s theories,
    closing arguments, and voir dire if applicable. Motilla v. State, 
    78 S.W.3d 352
    ,
    355–56 (Tex. Crim. App. 2002). The court should also consider the nature of the
    erroneous evidence and how it might have been perceived by the jury. 
    Id. at 355.
    More specifically, the court should consider whether the State emphasized the
    11
    error, whether the erroneously admitted evidence was cumulative, and whether it
    was elicited from an expert.              
    Id. at 356;
    Solomon, 49 S.W.3d at 365
    .
    Overwhelming evidence of guilt is relevant to this issue, but it is only one factor in
    the analysis. 
    Motilla, 78 S.W.3d at 356
    –57.
    A.     Cases assessing the effect of erroneously admitting retrograde
    extrapolation testimony
    In examining harm, we find instructive the Court of Criminal Appeals’
    opinion in Bagheri v. State and our Court’s opinion in Owens v. State. Both cases
    held that the erroneous admission of retrograde extrapolation testimony affected
    substantial rights and required reversal.
    In Bagheri, the defendant was pulled over at 2:30 a.m. for speeding and
    driving 
    erratically. 119 S.W.3d at 757
    . The defendant had veered off the road and
    onto the shoulder twice before cutting across three lanes of traffic without
    signaling. 
    Id. The officer
    testified that, after being pulled over, the defendant had
    “trouble finding his insurance, seemed somewhat confused, and had slurred speech
    and red, glassy eyes.” 
    Id. According to
    the officer, the defendant smelled of
    alcoholic beverages and stumbled when he stepped out of the car. 
    Id. The defendant
    was subjected to various field sobriety tests, including the HGN test and
    the one-leg stand. 
    Id. The officer
    concluded the defendant was intoxicated due to
    his performance on the tests and arrested him for driving while intoxicated. 
    Id. The defendant
    subsequently agreed to submit to an intoxilyzer test. 
    Id. The two
    breath samples, which occurred within three minutes of each other and more than
    an hour after the defendant was detained, showed results of .107 and .113.5 
    Id. The officer
    testified that by the conclusion of the testing, he formed the opinion
    5
    The two numbers are not the results of separate tests. 
    Id. at 759,
    n.3. The intoxilyzer
    test requires two samples to ensure accuracy. 
    Id. 12 that
    the defendant had lost the normal use of his mental and physical faculties. 
    Id. The State
    called an expert who provided retrograde extrapolation testimony.
    
    Id. at 758.
    The expert testified that, based on “hypothetical” intoxilyzer readings
    of .107 and .113, an individual’s alcohol concentration one hour earlier could have
    been between 0.107 and 0.143.           
    Id. The State
    conceded the retrograde
    extrapolation testimony was erroneously admitted under Mata. 
    Id. at 760.
    The
    State argued the error was harmless, however, because the jury charge included
    both a per se definition of intoxication (an alcohol concentration above a certain
    threshold) and an impairment definition of intoxication (not having normal use of
    faculties by reason of introducing alcohol into the body), and evidence pertaining
    to each theory would support the other. Id.; see Tex. Penal Code Ann. § 49.01(2)
    (West 2011).
    The Court of Criminal Appeals statedthat evidence to prove intoxication
    under either theory was relevant to the question whether appellant was in fact
    intoxicated, but it rejected the State’s argument that the testimony was harmless as
    a result. 
    Bagheri, 119 S.W.3d at 763
    . The court stated that the “issue was whether
    the erroneously admitted testimony might have prejudiced the jury’s consideration
    of the other evidence or substantially affected their deliberations.” 
    Id. The court
    ultimately concluded that the erroneous admission was harmful under the factors
    set forth in Motilla and Solomon. 
    Id. The court
    stated that the general verdict made it impossible to ascertain
    which theory the jury relied upon in convicting the defendant, but that this factor
    alone was not dispositive.      
    Id. The court
    did not believe the retrograde
    extrapolation testimony was cumulative of other evidence, notwithstanding
    appellant’s poor performance on the field sobriety tests. 
    Id. at 764.
    The court
    noted that at trial, the defense had pointed out the subjective nature of field
    13
    sobriety testimony. 
    Id. In addition,
    although the defendant admitted to consuming
    alcohol earlier, he asserted that he was not intoxicated at the time of the stop. 
    Id. Instead, the
    defendant attributed his poor driving performance to fatigue. 
    Id. Acknowledging the
    jury was free to disbelieve the defendant’s assertions, the court
    nonetheless declared that the effect of “scientifically reliable” extrapolation
    evidence would “almost certainly . . . tip the balance in favor of the State.” 
    Id. The court
    also examined what occurred during voir dire, noting several
    members of the jury pool conveyed a belief that a person who fails a breath test
    was “flat-out” guilty of driving while intoxicated and that several venire members
    believed blood alcohol would necessarily decline over time. 
    Id. Some venire
    members also expressed a belief that a person’s alcohol content would always be
    higher at the time of driving than at the time of the subsequent test. 
    Id. The court
    declared that these statements, though not determinative, demonstrated the
    “powerful persuasive effect that ‘scientific’ evidence has on the average juror.” 
    Id. Taking the
    entire record into consideration, the court held that it could not say with
    “fair assurance that the erroneous admission of [the expert’s] retrograde
    extrapolation testimony did not influence the jury, or had but a slight effect.” 
    Id. This Court
    followed Bagheri in Owens v. State. In that case, the defendant
    was arrested for driving while intoxicated after he collided with another car in a
    parking 
    lot. 135 S.W.3d at 304
    . The defendant was not taken into custody for
    over an hour and a half after the offense, and approximately two more hours passed
    before he was subjected to an intoxilyzer test. 
    Id. at 307–08.
    The first sample
    showed a blood alcohol content of .108, and the second sample, taken two minutes
    later, showed a blood alcohol content of .103.6 
    Id. at 305.
    The defendant was
    charged under both the impairment and per se definitions of intoxication. 
    Id. at 6
              As noted above, these two samples do not constitute separate tests under Mata.
    14
    310.
    As the Court of Criminal Appeals did in Bagheri, we rejected the State’s
    contention that the erroneous admission of retrograde extrapolation was harmless
    because the jury could have convicted the defendant under either theory. 
    Id. We explained
    that
    the issue is not whether the jury charge sets out a valid and proper
    means of committing the offense of DWI or whether there was
    sufficient evidence to prove one of the alleged means by which
    appellant committed the offense; rather, this court must ask whether
    the extrapolation evidence offered by the State’s expert to prove “per
    se” intoxication might have seriously affected the jury’s ability to
    determine if appellant was intoxicated, whether by “impairment” or
    “per se.”
    
    Id. (citing Bagheri,
    119 S.W.3d at 762 n.5.).
    In examining the evidence presented at trial, we noted that the retrograde
    extrapolation testimony was elicited from an expert, and that the prosecutor relied
    substantially on the expert’s credentials in his argument to the jury. 
    Owens, 135 S.W.3d at 311
    . We also took into account the statements made by the prosecutor
    during voir dire. 
    Id. The prosecutor
    told the panel members that the Texas
    Department of Public Safety concluded that the use of an intoxilyzer “is the most
    reasonable, accurate instrument out there to determine somebody’s blood alcohol
    content on the basis of their breath.” 
    Id. He went
    on to emphasize that it was not
    him making that determination, but rather the Department. 
    Id. We noted
    that the
    expert testified with certainty that appellant was legally intoxicated, even though
    he was unable to explain retrograde extrapolation with clarity. 
    Id. The expert
    opined that the defendant was “almost twice the legal limit” at the time of his
    detention. 
    Id. The prosecutor
    emphasized the expert’s opinion during re-direct by
    asking whether the defendant was below the legal limit under any of the
    hypotheticals proposed by either side. 
    Id. The expert
    responded that all the
    15
    hypotheticals rendered results above the legal limit. 
    Id. The prosecutor
    reiterated
    the expert’s conclusion during closing argument. 
    Id. We further
    concluded that the extrapolation evidence was not cumulative
    because there was no other “scientifically reliable” evidence that would have
    demonstrated the defendant was intoxicated. 
    Id. We acknowledged
    that there was
    evidence supporting the verdict, noting the testimony by the complainant that the
    defendant smelled strongly of alcohol, could not walk straight, and was “stumbling
    all over the place.” 
    Id. We also
    noted that a companion of the complainant
    testified that there were signs indicating the defendant was intoxicated, but we
    concluded this testimony was undermined by the companion’s admission that he
    changed some of his answers a few days before trial after a conversation with the
    complainant purportedly refreshed his memory. 
    Id. We also
    took into account the countervailing evidence. We considered the
    testimony of the defendant’s roommate, who stated that the defendant began
    drinking shortly after the accident, but that he did not believe the defendant had
    been drinking beforehand. 
    Id. We conceded
    that both officers testified that the
    defendant showed signs of intoxication at the scene one-and-a-half hours after the
    accident, but we pointed out that the defense offered a reasonable explanation. 
    Id. at 311–12.
    We concluded that, as in Bagheri, although the jury was free to assess
    the credibility of the witnesses in determining whether the defendant was legally
    intoxicated, it was probably swayed by the “scientifically precise conclusions
    provided” by the expert. 
    Id. at 312.
    We thus could not say the introduction of the
    retrograde extrapolation evidence had but a slight effect or did not influence the
    jury’s verdict. 
    Id. (citing Bagheri,
    119 S.W.3d at 764).
    B.    The effect of erroneously admitting Wilson’s testimony
    With these cases in mind, we examine the entire record to ascertain whether
    16
    the error in admitting the expert’s retrograde extrapolation testimony affected
    appellant’s substantial rights. We begin by examining the factors weighing against
    harm. During voir dire, the jury panelists were told that there would be evidence
    of blood alcohol concentration, but none indicated that he or she would afford
    special weight to such evidence. See 
    Douthitt, 127 S.W.3d at 338
    (distinguishing
    case from Bagheri in part on these grounds). Venire members were reminded that
    the State had to prove the appellant was intoxicated at the time of driving. Venire
    members also stated that they realized individuals have different physiological
    responses to alcohol and that the response would depend on an individual’s
    characteristics, including their drinking patterns.
    The prosecutor did not include retrograde extrapolation testimony in his list
    of evidence during the opening statement. See 
    id. (same). In
    addition, there is
    evidence to support a finding that appellant was intoxicated at the time of driving.
    Quezada testified that appellant failed to maintain a single lane, smelled of alcohol
    when he was pulled over, slurred his speech, had “red glassy eyes,” grabbed onto
    his truck when he got out of it, exhibited signs of intoxication during the field
    sobriety tests, and refused to provide either a breath or blood sample. In addition,
    the blood draw revealed that appellant’s blood alcohol concentration was .081. A
    blood draw result showing an alcohol concentration above the legal limit three-
    and-a-half hours after the stop can be probative evidence that the driver did not
    have normal use of his faculties. See Daricek v. State, 
    875 S.W.2d 770
    , 773 (Tex.
    App.—Austin 1994, pet. ref’d); see also Montgomery v. State, 
    810 S.W.2d 372
    ,
    376 (Tex. Crim. App. 1990) (“[E]vidence need not by itself prove or disprove a
    particular fact to be relevant; it is sufficient if the evidence provides a small nudge
    toward proving or disproving some fact of consequence.”).
    On the other hand, the defendant in Bagheri had intoxilyzer results
    17
    demonstrating a blood alcohol concentration greater than .10 and there was
    additional non-scientific evidence of the defendant’s intoxication, yet the court
    held that the erroneous admission of retrograde extrapolation evidence was
    harmful. 
    Bagheri, 119 S.W.3d at 757
    –58. Thus, even if the unextrapolated results
    of appellant’s blood draw, along with Quezada’s testimony, constituted
    overwhelming evidence of guilt (which we need not decide), that factor would not
    be dispositive. See 
    Motilla, 78 S.W.3d at 357
    .
    Furthermore, we are not tasked with examining the sufficiency of the
    evidence in this case. See 
    Bagheri, 119 S.W.3d at 763
    (“The question is not
    whether there was sufficient evidence to support the verdict.”); 
    Owens, 135 S.W.3d at 310
    . Instead, the issue is whether “the erroneously admitted testimony might
    have prejudiced the jury’s consideration of the other evidence or substantially
    affected their deliberations.”   
    Bagheri, 119 S.W.3d at 763
    .     In other words,
    although the jury is free to make credibility determinations, we must determine
    whether the jury was swayed one way or the other by the retrograde extrapolation
    testimony. Id.; 
    Owens, 135 S.W.3d at 312
    . We must examine the entire record,
    not solely the evidence supporting the verdict, to determine whether the error did
    not influence the jury or had but a slight effect. See 
    Solomon, 49 S.W.3d at 365
    ;
    Tex. R. App. P. 44.2(b).
    The jury charge in this case authorized conviction under both the per se and
    impairment definitions of intoxication, making it impossible to determine which
    theory the jury relied upon to convict. 
    Owens, 135 S.W.3d at 311
    (stating fact is
    relevant though not determinative in assessing harm). With regard to the field
    sobriety tests, Bagheri discounted the defendant’s performance on these tests as
    
    subjective. 119 S.W.3d at 760
    , 764.
    In addition, as in Owens, there is other testimony in our case tending to
    18
    undermine the non-extrapolation evidence of intoxication. On cross examination,
    Quezada admitted that appellant drifted only one tire length into the next lane
    before correcting himself. This testimony stands in stark contrast to Bagheri, in
    which the officer testified that the defendant veered across three lanes and the court
    nevertheless concluded the erroneous admission of retrograde extrapolation
    testimony necessitated 
    reversal. 119 S.W.3d at 757
    . Quezada also conceded that
    before he subjected appellant to the one-leg stand test, appellant stated that he had
    problems with his legs. Quezada contradicted his testimony on direct examination
    by admitting on cross examination that appellant did not hop or look like he was
    about to fall during the test. Instead, he “just put his foot down.” Quezada could
    not recall what number appellant counted to at the conclusion of the test. Quezada
    was unaware that the National Highway Traffic Safety Administration (NHTSA)
    manual states that people who are fifty pounds overweight or more will have
    difficulty with the test, and the record indicates appellant was five feet seven
    inches tall and weighed 220 pounds on the date of arrest.
    Although Quezada testified that he conducted the HGN test in accordance
    with NHTSA guidelines, he could not recall or was not sure how those guidelines
    defined a pass (or check) of each eye. He also did not know the minimum number
    of passes for the test to be effective, and he did not know the minimum amount of
    time prescribed for the HGN test. Quezada admitted that typically three field
    sobriety tests are administered, but in this case he only subjected appellant to two
    before he placed appellant under arrest.
    The challenged retrograde extrapolation testimony was elicited from an
    expert, whose “scientific” opinion can have a “powerful persuasive effect . . . on
    the average juror.” 
    Id. at 764.
    The State also invoked the expert’s testimony
    during closing arguments. The prosecutor recalled the expert’s unreliable
    19
    testimony when he asserted (incorrectly) that that the State gave appellant every
    benefit of the doubt, and that even assuming appellant was the slowest absorber
    and eliminator of alcohol, his blood alcohol concentration would be .095 at the
    time of driving.   The prosecutor told the jury, “There’s simply no way the
    defendant could have been less than that .08 at the time of driving. And remember,
    that’s what the law says. We talked about this in voir dire, right?” The prosecutor
    went on to say that “if you are above a .08 or greater, then you are intoxicated
    legally in the State of Texas. A .08 or greater, and that’s what we have here.” The
    prosecutor referred to the extrapolation testimony again during his rebuttal
    argument, erroneously stating that Wilson testified that appellant’s blood alcohol
    concentration was between .095 and .125.
    Finally, appellant argues that the notes the jury sent to the judge during
    deliberations indicate that he suffered harm. See Washington v. State, 
    449 S.W.3d 555
    , 567 (Tex. App.—Houston [14th Dist.] 2014, no pet.) (“[I]n assessing harm,
    we may also review the jury’s questions asked during deliberations.”). The jury
    sent a series of notes requesting Wilson’s testimony regarding “her qualifications
    and particularly the training/conference she went to in Indiana,” her testimony on
    the “absorption [and] elimination rates of alcohol,” and her testimony calculating
    appellant’s blood alcohol concentration at the time he was stopped. In response,
    the trial court told the jury that there had to be a dispute about what the witness
    said. The jury then sent another note with the following question:
    Did the toxicologist provide a BAC at the time of the defendant being
    pulled over and if so, how did she arrive at that calculation? (i.e. what
    standard/accepted formula did she use?) (we don’t need the actual
    formula—just her testimony regarding whether or not her calculations
    gave the defendant the benefit of the doubt.)
    These notes indicate that the jury focused on the unreliable retrograde
    20
    extrapolation testimony provided by the expert. A later note sent by the jury asked
    for Quezada’s testimony “regarding whether or not he searched the vehicle for
    open containers,” explaining that “we’re trying to review the testimony regarding
    the time of the defendant’s last drink.” This note likewise indicates that the jury
    was focused on the components of a retrograde extrapolation calculation.7
    In light of these notes, the prosecution’s reliance on the expert’s
    extrapolation testimony during closing arguments, the powerful persuasive effect
    of such testimony, the subjective nature of field sobriety tests, and the testimony
    undermining the non-extrapolation evidence of intoxication, we cannot say that we
    have a fair assurance that the error in admitting the expert’s unreliable
    extrapolation testimony did not influence the jury or had but a slight effect. See
    
    Bagheri, 119 S.W.3d at 764
    ; 
    Solomon, 49 S.W.3d at 365
    . Indeed, the notes
    indicate that the erroneously admitted testimony either “prejudiced the jury’s
    consideration of the other evidence” or at the very least “substantially affected
    their deliberations.” 
    Bagheri, 119 S.W.3d at 763
    . The jury was likely swayed by
    the scientifically precise conclusions Wilson provided, which were not cumulative
    of other evidence in the case.8          Accordingly, we hold that the error affected
    7
    The only other note sent by the jury asked for a copy of the offense report, which was
    not in evidence.
    8
    See 
    Bagheri, 119 S.W.3d at 764
    ; 
    Owens, 135 S.W.3d at 311
    –12. In Douthitt, the Austin
    Court of Appeals viewed the expert’s retrograde extrapolation testimony as “cumulative” in light
    of the testimony of several witnesses indicating appellant was 
    intoxicated. 127 S.W.3d at 338
    .
    The Court of Criminal Appeals in Bagheri, however, stated that it did “not believe the
    extrapolation testimony in [the] case was cumulative[,]” notwithstanding the officer’s testimony,
    the defendant’s poor performance on field sobriety tests, and the intoxilyzer results showing
    appellant had a blood alcohol concentration above the legal limit. Bagheri, 119 S.W.3d at764.
    Following Bagheri, we similarly reasoned in Owens that the evidence was not cumulative
    because there was no other “scientifically reliable” evidence in the case that would have
    indicated appellant was intoxicated at the time of the accident, even though the complainant and
    another witness opined appellant was 
    intoxicated. 135 S.W.3d at 311
    –12. We conclude that
    under Bagheri and Owens, the retrograde extrapolation evidence in this case is not cumulative of
    Quezada’s testimony concerning the stop, appellant’s performance on the field sobriety tests, and
    21
    appellant’s substantial rights, and he is therefore entitled to a new trial. We sustain
    appellant’s second issue.9
    CONCLUSION
    Having sustained appellant’s second issue, we reverse the judgment of the
    trial court and remand the case for a new trial.
    /s/     J. Brett Busby
    Justice
    Panel consists of Justices Jamison, Busby, and Brown.
    Publish — TEX. R. APP. P. 47.2(b).
    the results of alcohol testing on the blood sample drawn three-and-a-half hours after the stop.
    9
    Because we sustain this issue, we need not address appellant’s first and third issues,
    which would not afford him greater relief. See Tex. R. App. P. 47.1 (“The court of appeals must
    hand down a written opinion that is as brief as practicable but that addresses every issue raised
    and necessary to final disposition of the appeal.”).
    22