IN THE COURT OF APPEALS

STATE OF ARIZONA

DIVISION TWO

THE STATE OF ARIZONA,

Appellee,

v.

TYLA NAUREEN POSHKA,

Appellant.

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2 CA-CR 2003-0123

DEPARTMENT B

O P I N I O N

APPEAL FROM THE SUPERIOR COURT OF PIMA COUNTY

Cause No. CR-20022605

Honorable Kenneth Lee, Judge

Honorable Paul E. Tang, Judge

AFFIRMED

Terry Goddard, Arizona Attorney General

 By Randall M. Howe and Alan L. Amann

Isabel G. Garcia, Pima County Legal Defender

 By Alex D. Heveri

Tucson

Attorneys for Appellee

Tucson

Attorneys for Appellant

E S P I N O S A, Judge.

APR -1 2005

FILED BY CLERK

COURT OF APPEALS

DIVISION TWO
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¶1 Appellant Tyla Poshka was convicted after a jury trial of one count of

aggravated drivingunderthe influence of alcohol (DUI) with a suspended orrevoked driver’s

license and one count of aggravated driving with a blood alcohol concentration (BAC) of

.08 or more with a suspended or revoked driver’s license. The trial court suspended the

imposition of sentence and imposed concurrent, five-year terms of probation. Poshka

contends the legislature’s amendment to A.R.S. § 28-1381 is unconstitutionally vague and

overbroad and violates her due process rights. Finding no constitutional infirmity to the

statute, we affirm.

Factual and Procedural History

¶2 We view the factsin the light most favorable to sustainingthe jury verdicts and

resolve all reasonable inferences against the appellant. See State v. Riley, 196 Ariz. 40, 992

P.2d 1135 (App. 1999). Tucson Police Officer Nielsen stopped Poshka late one evening in

August 2002 after he observed her make an improper, wide right turn. He noticed that her

eyes were bloodshot and watery, her face was flushed, and her speech was slurred. He also

noticed the odor of alcohol on her breath. Poshka admitted she did not have a license and

had been drinking. After she stepped out of the car, Nielsen noticed she swayed back and

forth as she stood. She exhibited six out of a possible six cues on the horizontal gaze

nystagmus test that Nielsen administered, and he then arrested her. The results from breath

tests, taken minutes apart, indicated that her BAC was .099 and .094.
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Constitutionality of A.R.S. § 28-1381

¶3 Poshka challenges the constitutionality of the statute under which she was

convicted, § 28-1381, on the grounds that it is both vague and overbroad. We review de

novo the constitutionality of a statute, State v. McMahon, 201 Ariz. 548, 38 P.3d 1213

(App. 2002), and, if possible, construe the statute to give it a constitutional meaning. State

v. Bonnewell, 196 Ariz. 592, 2 P.3d 682 (App. 1999); see State v. Klausner, 194 Ariz. 169,

172, 978 P.2d 654, 657 (App. 1998) (“We will uphold a statute if we can imagine any set

offacts which rationally justifiesit.”). Subsection (A)(2) of § 28-1381 provides, in relevant

part, that it is unlawful for a person to drive a vehicle if that person “has an alcohol

concentration of .08 or more within two hours of driving . . . and the alcohol concentration

results from alcohol consumed either before or while driving.” 

Vagueness

¶4 Poshka first argues the statute fails to provide adequate notice of the conduct

it prohibits and permits arbitrary and discriminatory enforcement, making the law

unconstitutionally vague. Both arguments are grounded in the statute’s alleged deficiency

whereby, Poshka maintains, a person of ordinary intelligence is unable to know the precise

moment when his or her BAC has reached the prohibited level of .08, because various

factors affect the rate and time at which alcohol is absorbed into one’s bloodstream.

¶5 Astatute is unconstitutionally vague ifit failsto provide “person[s] of ordinary

intelligence a reasonable opportunity to know what is prohibited” and fails to contain

explicit standards of application to prevent arbitrary and discriminatory enforcement.
1An amendment to A.R.S. § 28-1381 reduced the threshold alcohol concentration

from .10 to .08, effective September 1, 2001. 2001 Ariz. Sess. Laws, ch. 95, § 5.

4

Grayned v. City of Rockford, 408 U.S. 104, 108-09, 92 S. Ct. 2294, 2298-99, 33 L. Ed. 2d

222, 227 (1972); State v. Brown, 207 Ariz. 231, 85 P.3d 109 (App. 2004). As the state

notes, in Fuenning v. Superior Court, 139 Ariz. 590, 680 P.2d 121 (1983), our supreme

court addressed and rejected an argument virtually identical to the one Poshka poses here.

In Fuenning, the defendant challenged the basic DUI statute in existence at the time of his

arrest,former A.R.S. § 28-692, which proscribed driving “while there is.10 per cent or more

. . . of alcohol in the person’s blood.” Rejecting the concept that the statute inhibits any

fundamental constitutional right, such as a right to ingest alcohol and then drive a vehicle,

the court applied a traditional “vagueness” analysis and determined that, because the statute

provided fair notice of what constituted a punishable BAC level, “it should not be declared

void for vagueness simply because it may be difficult for the public to determine how far

they can go before they are in actual violation” ofthe law. Fuenning, 139 Ariz. at 598, 680

P.2d at 129. The court further explained: 

While [a] driver may not be able to determine that his

BAC is.10%, rather than .099%, such precision is not required

to prevent the statute from being declared vague. Due process

requires neither perfect notice, absolute precision nor

impossible standards. It requires only that the language of a

statute convey a definite warning of the proscribed conduct.

Id.1

¶6 We can discern no meaningful difference between the argument Poshka now

makes and the one addressed in Fuenning. And Division One of this court has likewise
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rejected a vagueness challenge to former § 28-692(A)(2). State v. Martin, 174 Ariz. 118,

122, 847 P.2d 619, 623 (App. 1992) (proscription against driving with a BAC of .10 or

greater within two hours of driving, “when read as a whole, precisely defines the conduct

that subjects a person to imposition of a criminal sanction”). We, therefore, reject Poshka’s

contention that § 28-1381 provides inadequate notice of the conduct it proscribes.

¶7 Poshka also claims the statute permits arbitrary and discriminatory

enforcement because an individual’s BAC result can vary depending on the time the test is

performed, investing in police officers “unfettered discretion” in determining when to

perform the test to maximize the likelihood of a higher BAC result. See Kolender v.

Lawson, 461 U.S. 352, 358, 103 S. Ct. 1855, 1858, 75 L. Ed. 2d 903, 909 (1983) (statute

is impermissibly vague if it delegates to law enforcement officers “virtually complete

discretion” in determining whether statutory violation occurred). In response to a similar

argument, the court in Fuenning acknowledged that “results from a test administered after

a significant period of time . . . or which are subject to other factors creating scientific

inaccuracy”may inject evidentiary problems, but the court determined that those arematters

for the fact-finder to resolve, and rejected the contention. That reasoning is applicable here.

¶8 Moreover, as the state observes, the statute proscribes driving with a BAC of

.08 or greater “within two hours of driving.” § 28-1381(A)(2). Rather than being

susceptible to arbitrary enforcement, the statute’s terms are unambiguous and precise in

identifying the prohibited conduct—having a BAC of .08 or higher within two hours of

driving a vehicle. Far from being vague, the two-hour provision satisfies due process by
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advising that criminal penalties exist for those who risk getting behind the wheel of a car

after consuming a substantial amount of alcohol. Martin. We therefore disagree with

Poshka that the statute’s terms are so inexplicit as to grant law enforcement officers an

undue measure of discretion. Cf. Kolender, 461 U.S. at 353, 103 S. Ct. at 1856, 75 L. Ed.

2d at 906 (statute allowing officers to arrest loiterers who fail to provide “credible and

reliable” identification deemed unconstitutionally vague due to officers’ unbridled discretion

in assessing identification’s sufficiency). Accordingly, we reject Poshka’s challenges on

vagueness grounds to § 28-1381.

Overbreadth

¶9 Poshka also contends § 28-1381 is unconstitutionally overbroad, insisting that,

because “driving with a BAC under .08 is not expressly illegal, the legislature cannot make

it so by testing the defendant two hours later,” and that to do so casts “too wide a net” that

includes both illegal and legal conduct. See Brown (overbroad statutes are ones designed

to punish activities that are not constitutionally protected, but include within their scope

activities that are constitutionally protected). As the state correctly observes, however,

Poshka lacks standing to bring an overbreadth claim here because she has not alleged that

§ 28-1381(A)(2) “substantially infringes upon protected First Amendment freedoms or that

[s]he is a member of a class of ‘innocent defendants.’” Martin, 174 Ariz. at 123, 847 P.2d

at 624; see Brown. In response to an identical argument made in Cacavas v. Bowen, 168

Ariz. 114, 811 P.2d 366 (App. 1991), we held that, because the petitioners’ challenge to the

DUI statute did not implicate First Amendment rights, they were without standing to
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challenge the statute as unconstitutional when applied to parties who were not before the

court. See Cacavas, 168 Ariz. at 118, 811 P.2d at 370 (“We do not believe that either

drinking or driving are fundamental rights.”). Therefore, we do not address this argument

further.

Elimination of Affirmative Defense in § 28-1381(C)

¶10 Until recently, § 28-1381 contained, in relevant part, the following additional

provision: 

It is an affirmative defense to a charge of a violation of

subsection A, paragraph 2 of this section if the person did not

have an alcohol concentration of 0.10 or more at the time of

driving . . . . If a defendant produces some credible evidence

that the defendant’s alcohol concentration at the time of driving

. . . was below 0.10, the state must prove beyond a reasonable

doubt that the defendant’s alcohol concentration was 0.10 or

more at the time of driving . . . .

See 2000 Ariz. Sess. Laws, ch. 153, § 1. The legislature had removed that portion of the

statute by the time Poshka committed her offenses. See 2001 Ariz. Sess. Laws, ch. 95, § 5.

Poshka argues, as she did below in a motion to dismiss the charges against her, that the

legislature’s elimination ofthe affirmative defense clause renders § 28-1381(A)(2) violative

of due process because the statutory proscription against having a BAC of .08 within two

hours of driving is no longer rationally related to furthering a legitimate governmental

interest. We disagree.

¶11 Poshka relies on language from Martin to argue that § 28-1381’s affirmative

defense provision wasthe indispensable portion ofthe statute thatsaved its constitutionality.

In that case, in evaluating the defendant’s allegation that the proscription against having a
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BAC of .10 or greater within two hours of driving was unconstitutionally vague, Division

One noted that, “if one consumes alcoholic beverages within two hours after driving, with

a BAC of 0.10 or more within the two-hour period but not at the time of driving, that fact

may establish an affirmative defense.” 174 Ariz. at 122, 847 P.2d at 623. A fair reading of

that language, however, indicates that the court was simply responding to the defendant’s

contention that the statute could theoretically encompass an individual who consumed

alcohol after driving. But § 28-1381(A)(2) proscribes having a BAC of .08 or more within

two hours of drivingwhen that BAC “results from alcohol consumed either before or while

driving.” (Emphasis added.) Indeed, that provision was added to § 28-1381

contemporaneously with the removal ofthe affirmative defense. 2000 Ariz. Sess. Laws, ch.

4, § 2. Although the affirmative defense served a purpose in the context of the previous

version ofthe statute, which more broadly proscribed havingaBACof.10 or greater “within

two hours of driving,” see 2000 Ariz. Sess. Laws, ch. 153, § 1, that function is no longer

necessary given the statutory changes that exclude alcohol consumed after driving from the

ambit of the current version of the DUI statutes.

¶12 Underthe current statute, that a defendant’sBACat the precise time ofdriving

may not have reached the proscribed level is irrelevant. Rather, a defendant’s BAC need

only have reached .08 within two hours of driving. § 28-1381(A)(2); see also Sereika v.

State, 955 P.2d 175, 179 (Nev. 1998) (upholding constitutionality ofsimilarstatute,finding

“a defendant’s blood alcohol level at the time of driving issimply irrelevant” to his violation

of the statute; legislature may prohibit having a BAC of .10 or more within two hours after
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driving). Consequently, Poshka’s contention that “the legislature has extinguished the need

for the State to prove beyond a reasonable doubt that the defendant violated the statute at

the time of driving” is of no moment. The state’s burden of proving beyond a reasonable

doubt that a defendant has violated § 28-1381 has not changed; only the means by which

the statute is violated has changed. Poshka’s contention that the statute “creates an

irrational and irrebuttable presumption of guilt” similarly fails because the two-hour rule is

not a presumption, but, rather, a definition of the offense. The state has not been relieved

from proving that the defendant’s BAC was .08 or greater within two hours of driving. See

Martin; Cacavas; see also State v. Crediford, 927 P.2d 1129 (Wash. 1996) (driver’s BAC

at time of driving not element under DUI statute that prohibits having a BAC of .10 or

greater within two hours after driving).

¶13 We reject Poshka’s contention that, absent the affirmative defense, § 28-1381

no longer survives rational basis review. The legislature may prescribe what conduct is or

is not lawful. Cacavas. The creation of the crime of having a blood alcohol level of .10

percent or greater—now .08 or greater—within two hours of driving a motor vehicle was

within the purview of the legislature’s broad police power. See id.; see also Werner v.

Prins, 168 Ariz. 271, 812 P.2d 1089 (App. 1991) (legislation, requiring license suspension

for any driver with .10 or greater BAC, enacted pursuant to police power bears reasonable

relation to legitimate state interest in addressing significant harm intoxicated drivers pose);

State v. Chirpich, 392 N.W.2d 34 (Minn. Ct. App. 1986) (recognizing legislative, not

judicial, duty to define DUI elements). Given the state’s strong public policy interest in
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preventing loss of life occasioned by alcohol-related traffic accidents, the legislature could

rationally conclude that the two-hour window delineated in § 28-1381(A)(2) is a necessary

method of addressing that concern. Fuenning; Cacavas. The state’s interest, characterized

as “compelling” in Fuenning, a fortiori satisfies the rational basis standard. 139 Ariz. at

595, 680 P.2d at 126. The “logical connection” between the statute and its underlying

purpose that Poshka assertsis absent here is, quite distinctly, a discrete period of time—two

hours—within which it can be said that one’s ability to safely operate a vehicle has been

compromised by a defined level of alcohol consumption, and an implicit recognition that it

is never possible to test a driver’s BAC until after he or she has stopped driving. See

Flemming v. Nestor, 363 U.S. 603, 611, 80 S. Ct. 1367, 1373, 4 L. Ed. 2d 1435, 1445

(1960) (“[T]he Due Process Clause can be thought to interpose a bar only if the statute

manifests a patently arbitrary classification, utterly lacking in rational justification.”).

¶14 Poshka concludes her argument by reviewing other jurisdictions’ approaches

to similar DUI statutes that, she contends, support her position. See State v. Baker, 720

A.2d 1139 (Del. 1998) (holding similar statute impermissibly shifts burden of proof to

defense); Commonwealth v. Barud, 681 A.2d 162, 166 (Pa. 1996) (holding statute similar

to former § 28-692(A)(2) unconstitutionally vague and overbroad because it “completely

fails to require any proof that the accused’s blood alcohol level actually exceeded the legal

limit at the time of driving”) (emphasis in original); Crediford (holding affirmative defense

provision of similar statute that shifts burden of proof to defense unconstitutional). That

other courts have reached conclusions contrary to Arizona’s courts based on interpretations
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oftheir different state statutes does not alter our view that the Arizona decisions are correct.

And none ofthe cases Poshka citessupports her contention that the legislature’s elimination

of the affirmative defense provision in particular renders the Arizona statute

unconstitutional.

Disposition

¶15 For the foregoing reasons, Poshka’s convictions and the imposition of

probationary terms are affirmed.

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PHILIP G. ESPINOSA, Judge

CONCURRING:

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JOHN PELANDER, Chief Judge

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M. JAN FLÓREZ, Presiding Judge