State v. Ruiz
CourtCourt of Appeals of Oregon
Date FiledNovember 12, 2026
DocketA186061
JudgeJacquot
StatusUnpublished
📰 News Coverage: Read the LAWS.com news report on this case
Full Opinion
718 November 12, 2026 No. 1109
This is a nonprecedential memorandum opinion
pursuant to ORAP 10.30 and may not be cited
except as provided in ORAP 10.30(1).
IN THE COURT OF APPEALS OF THE
STATE OF OREGON
STATE OF OREGON,
Plaintiff-Respondent,
v.
JOSE ANTONIO TULA RUIZ,
aka Antonio Tula Ruiz,
Defendant-Appellant.
Multnomah County Circuit Court
24CR21668; A186061
Christopher A. Ramras, Judge.
Submitted October 7, 2026.
Ernest G. Lannet, Chief Defender, Criminal Appellate
Section, and James Brewer, Deputy Public Defender, Oregon
Public Defense Commission, filed the brief for appellant.
Dan Rayfield, Attorney General, Paul L. Smith, Solicitor
General, and Joanna L. Jenkins, Assistant Attorney
General, filed the brief for respondent.
Before Tookey, Presiding Judge, Egan, Judge, and
Jacquot, Judge.
JACQUOT, J.
Affirmed.
Nonprecedential Memo Op: 354 Or App 718 (2026) 719
JACQUOT, J.
Defendant appeals a judgment of conviction for driv-
ing under the influence of intoxicants (DUII), ORS 813.010,
and driving while suspended, ORS 811.182(4). Defendant
was found guilty of both counts by a jury and now raises one
assignment of error, arguing that the trial court erred in
admitting the results of a horizontal gaze nystagmus (HGN)
test that had not been properly recorded by the officer. We
affirm.
“We review * * * rulings as to whether particular
evidence is scientific and is admissible as ‘scientific evi-
dence’ ” for errors of law. State v. Owens, 207 Or App 31, 37,
139 P3d 984 (2006), rev den, 342 Or 503 (2007).
Defendant was stopped by a police officer for speed-
ing. During the stop, the officer observed that defendant’s
eyes were watery and bloodshot. The officer also smelled
alcohol on defendant’s breath. When asked whether he had
anything to drink that night, defendant admitted to having
a few beers. Believing there was probable cause to suspect
that defendant had committed a DUII, the officer asked
him to perform a field sobriety test. The officer adminis-
tered three field sobriety tests—HGN, walk-and-turn, and
one-leg-stand. The HGN test required the officer to check in
each eye for a lack of smooth pursuit, distinct and sustained
nystagmus at maximum deviation, and onset of nystagmus
prior to 45 degrees.
Defendant generally performed poorly on all three
tests. Although the officer administered all three tests cor-
rectly, he did not properly record the HGN test results. In
particular, the officer neglected to check either the “yes” or
“no” boxes on the field sobriety test result sheet for observ-
ing onset of nystagmus prior to 45 degrees. However, the
officer did write in the narrative portion of the form that he
had observed “four out of six” clues on the HGN, which was
an accurate record of defendant’s performance as he did not
exhibit onset of nystagmus prior to 45 degrees in either eye.
After conducting the field sobriety tests, the officer
searched defendant’s car and found an empty beer bottle on
the passenger floorboard and an empty can of hard iced tea
720 State v. Ruiz
in the glove compartment. Defendant was then arrested,
taken to the police station, and interviewed. When asked
whether he should have been driving, defendant answered,
“No. Not at all.” A breath test showed defendant to have a
blood alcohol content (BAC) of .15 percent.
Prior to the start of trial, defendant moved in limine
to exclude evidence of the HGN test on the basis that the
results were improperly recorded and should not be admit-
ted under State v. O’Key, 321 Or 285, 899 P2d 663 (1995).
The trial court proposed holding a brief OEC 104 hearing
when the officer was called to testify at trial to address the
HGN test’s results.
During direct examination, the officer testified
that defendant completed the HGN test. Defendant raised
his previous foundational objection, and the trial court held
a brief OEC 104 hearing outside the presence of the jury.
Defendant explained that on the field sobriety test report,
the officer had not recorded whether defendant exhibited
the onset of nystagmus prior to 45 degrees, suggesting that
either the officer had not performed that part of the test or
that he had performed it but did not record the results. The
officer testified that he performed all steps of the HGN, he
conducted the test the way that he had been trained to do,
and that he was qualified to administer the test. The officer
explained that he forgot to check the “no” boxes for onset of
nystagmus prior to 45 degrees, but he did note that he wrote
that defendant exhibited “four out of six” HGN clues in the
narrative portion.
During closing arguments, the state primarily
relied on the results of the breath test. However, the state
also framed much of its case around the officer’s testimony
regarding defendant’s appearance and performance on the
three field sobriety tests.
When it came time to instruct the jury, the
state requested that the jury be instructed only on
the .08-percent-while-driving-per-se theory of DUII,
Uniform Criminal Jury Instruction 2703A, and not the
adversely-affected-to-a-perceptible-degree theory, Uniform
Criminal Jury Instruction 2702. Although the court defined
Nonprecedential Memo Op: 354 Or App 718 (2026) 721
“under-the-influence-of-intoxicants,” the jury was instructed
only on the former theory. The jury was additionally asked
to make a special finding on the aggravating factor that
defendant drove with a .15 percent or higher BAC, and the
jury found that he had.
“[S]ubject to a foundational showing that the offi-
cer who administered the test was properly qualified, the
test was administered properly, and the test results were
recorded accurately, HGN test evidence is admissible in a
DUII proceeding to establish that a defendant was under
the influence of intoxicating liquor.” O’Key, 321 Or at 322-
23. On appeal, defendant relies on State v. Ingram, 238 Or
App 720, 243 P3d 488 (2010) and State v. Rodriguez-Delao,
335 Or App 700, 560 P3d 85 (2024) in support of the proposi-
tion that “any acknowledged error in administering the test
prevents the state from laying the foundation that O’Key
requires.” While those cases do support such a proposition,
we note that the HGN evidence was excluded in those cases
because the officers improperly administered HGN tests,
leading to scientifically invalid results. The present case is
distinguishable because the officer here properly adminis-
tered the test as he was trained to do, and the results of the
test are scientifically valid.
In addition to the proper administration of the HGN
test, O’Key requires that the results be recorded accurately.
321 Or at 322. Regarding the recording of the HGN test’s
results, O’Key states that “[o]fficers are trained to keep a
notebook listing performance on all field sobriety tests,
including the HGN, to refresh their recollection and to pro-
vide defense counsel with an avenue for cross-examination.”
Id. at 318.
O’Key does not specifically require officers admin-
istering an HGN test to record the results of the test in any
specific way. Rather, it recognizes that the purpose behind
recording the results of the test is to refresh the officer’s
recollection and to provide defense counsel with an avenue
for cross-examination. Defendant is correct that the officer
did not fill out the form for the HGN test as it was designed
to be filled out. Two out of six boxes on the form were not
properly marked to indicate that all parts of the HGN test
722 State v. Ruiz
were performed, but the officer did write in the narrative
portion of the form that he observed four out of six signs
of intoxication, which seemed to be enough to refresh his
recollection and to provide defendant with an avenue for
cross-examination.
If the officer did not observe signs of intoxication
but nonetheless marked the form as observing them, then
the recording would be inaccurate and unfairly prejudice
the defendant. However, in the present case, the officer did
not observe onset of nystagmus prior to 45 degrees in either
eye, and neither an examination of the boxes on the form nor
its narrative portion suggest that he did. While the test may
not have been marked in the way it was intended to be, the
recordings that were made accurately document the officer’s
observations. Because the HGN test’s recording success-
fully allowed the officer to refresh his recollection at trial,
and because defendant’s ability to cross-examine the officer
was not impaired by the error in recording, the HGN test’s
recording here was sufficient under O’Key.
The state argues on appeal that even if the trial
court erred in admitting the HGN test’s results, any error
was harmless. “Under Article VII (Amended), section 3, of the
Oregon Constitution, an appellate court may not reverse a
criminal defendant’s conviction based on an error—whether
preserved or unpreserved—that is harmless.” State v. Ortiz,
372 Or 658, 671, 554 P3d 796 (2024). An error is considered
harmless for purposes of that constitutional standard if
there was “little likelihood that the error affected the jury’s
verdict.” State v. Davis, 336 Or 19, 32, 77 P3d 1111 (2003).
Here, the state presented evidence of two other field
sobriety tests, both of which defendant performed poorly
on. The state also presented results from a breath test that
showed defendant had been driving with a BAC of .15 per-
cent or higher, and the jury made a special finding accept-
ing that fact. Because it made that special finding, the jury
found that defendant had a BAC of over .08 percent at the
time of driving. We conclude that the results of the HGN
test were unnecessary to find the defendant guilty under
the legal theory it applied, and that any error in admitting
parts of the HGN results did not prejudice defendant’s case.
Nonprecedential Memo Op: 354 Or App 718 (2026) 723
Rather, the record suggests that the jury relied primarily
on the breath test’s result to convict defendant, and in light
of all the other evidence, it is unlikely that the exclusion
of the HGN test would have changed the jury’s conclusion.
Therefore, even if the trial court did err in admitting the
HGN test’s results as evidence, that error was harmless.
Affirmed.