California Criminal Jury Instructions (CALCRIM) (2017)
2110. Driving Under the InfluenceDownload PDF
(ii) Without Injury
2110.Driving Under the Inﬂuence (Veh. Code, § 23152(a))
The defendant is charged [in Count ] with driving under the
inﬂuence of (an alcoholic beverage/ [or] a drug) [or under the combined
inﬂuence of an alcoholic beverage and a drug] [in violation of Vehicle
Code section 23152(a)].
To prove that the defendant is guilty of this crime, the People must
1. The defendant drove a vehicle;
2. When (he/she) drove, the defendant was under the inﬂuence of
(an alcoholic beverage/ [or] a drug) [or under the combined
inﬂuence of an alcoholic beverage and a drug].
A person is under the inﬂuence if, as a result of (drinking [or
consuming] an alcoholic beverage/ [and/or] taking a drug), his or her
mental or physical abilities are so impaired that he or she is no longer
able to drive a vehicle with the caution of a sober person, using
ordinary care, under similar circumstances.
The manner in which a person drives is not enough by itself to establish
whether the person is or is not under the inﬂuence of (an alcoholic
beverage/ [or] a drug) [or under the combined inﬂuence of an alcoholic
beverage and a drug]. However, it is a factor to be considered, in light
of all the surrounding circumstances, in deciding whether the person
was under the inﬂuence.
[An alcoholic beverage is a liquid or solid material intended to be
consumed that contains ethanol. Ethanol is also known as ethyl alcohol,
drinking alcohol, or alcohol. [An alcoholic beverage includes
<insert type[s] of beverage[s] from Veh. Code, § 109 or Bus.
& Prof. Code, § 23004, e.g., wine, beer>.]]
[A drug is a substance or combination of substances, other than alcohol,
that could so affect the nervous system, brain, or muscles of a person
that it would appreciably impair his or her ability to drive as an
ordinarily cautious person, in full possession of his or her faculties and
using reasonable care, would drive under similar circumstances.]
[If the People have proved beyond a reasonable doubt that the
defendant’s blood alcohol level was 0.08 percent or more at the time of
the chemical analysis, you may, but are not required to, conclude that
the defendant was under the inﬂuence of an alcoholic beverage at the
time of the alleged offense.]
[In evaluating any test results in this case, you may consider whether or
not the person administering the test or the agency maintaining the
testing device followed the regulations of the California Department of
[It is not a defense that the defendant was legally entitled to use the
[If the defendant was under the inﬂuence of (an alcoholic beverage/
[and/or] a drug), then it is not a defense that something else also
impaired (his/her) ability to drive.]
New January 2006; Revised June 2007, April 2008, August 2015
The court has a sua sponte duty to give this instruction deﬁning the elements of
the crime. Give this instruction if the defendant is charged with a misdemeanor or
a felony based on prior convictions.
If the defendant is charged with one or more prior convictions for driving under the
inﬂuence, the defendant may stipulate to the convictions. (People v. Weathington
(1991) 231 Cal.App.3d 69, 90 [282 Cal.Rptr. 170].) In addition, either the
defendant or the prosecution may move for a bifurcated trial. (People v. Calderon
(1994) 9 Cal.4th 69, 77–78 [36 Cal.Rptr.2d 333, 885 P.2d 83]; People v. Cline
(1998) 60 Cal.App.4th 1327, 1334–1336 [71 Cal.Rptr.2d 41]; People v.
Weathington,supra, 231 Cal.App.3d at p. 90.) If the defendant does not stipulate
and the court does not grant a bifurcated trial, give CALCRIM No. 2125, Driving
Under the Inﬂuence or With 0.08 Percent Blood Alcohol: Prior Convictions. If the
court grants a bifurcated trial, give CALCRIM No. 2126, Driving Under the
Inﬂuence or With 0.08 Percent Blood Alcohol: Prior Convictions—Bifurcated Trial.
If the defendant stipulates to the truth of the convictions, the prior convictions
should not be disclosed to the jury unless the court admits them as otherwise
relevant. (See People v. Hall (1998) 67 Cal. App. 4th 128, 135 [79 Cal. Rptr. 2d
The bracketed paragraph that begins with “If the People have proved beyond a
reasonable doubt that the defendant’s blood alcohol level was 0.08 percent”
explains a rebuttable presumption created by statute. (See Veh. Code, § 23610;
Evid. Code, §§ 600–607.) The California Supreme Court has held that a jury
instruction phrased as a rebuttable presumption in a criminal case creates an
unconstitutional mandatory presumption. (People v. Roder (1983) 33 Cal.3d 491,
497–505 [189 Cal.Rptr. 501, 658 P.2d 1302].) In accordance with Roder, the
instructions have been written as permissive inferences.
The court must not give the bracketed paragraph that begins with “If the People
have proved beyond a reasonable doubt that the defendant’s blood alcohol level
CALCRIM No. 2110 VEHICLE OFFENSES
was 0.08 percent” if there is no substantial evidence that the defendant’s blood
alcohol level was at or above 0.08 percent at the time of the test. In addition, if the
test falls within the range in which no presumption applies, 0.05 percent to just
below 0.08 percent, do not give this bracketed sentence. (People v. Wood (1989)
207 Cal.App.3d Supp. 11, 15 [255 Cal.Rptr. 537].) The court should also consider
whether there is sufficient evidence to establish that the test result exceeds the
margin of error before giving this instruction for test results of 0.08 percent.
(Compare People v. Campos (1982) 138 Cal.App.3d Supp. 1, 4–5 [188 Cal.Rptr.
366], with People v. Randolph (1989) 213 Cal.App.3d Supp. 1, 11 262 Cal.Rptr.
The statute also creates a rebuttable presumption that the defendant was not under
the inﬂuence if his or her blood alcohol level was less than 0.05 percent. (People v.
Gallardo (1994) 22 Cal.App.4th 489, 496 [27 Cal.Rptr.2d 502].) Depending on the
facts of the case, the defendant may be entitled to a pinpoint instruction on this
presumption. It is not error to refuse an instruction on this presumption if the
prosecution’s theory is that the defendant was under the combined inﬂuence of
drugs and alcohol. (People v. Andersen (1994) 26 Cal.App.4th 1241, 1250 [32
If the evidence demonstrates that the person administering the test or agency
maintaining the testing device failed to follow the title 17 regulations, give the
bracketed sentence that begins with “In evaluating any test results in this case.”
(People v. Adams (1976) 59 Cal.App.3d 559, 567 [131 Cal.Rptr. 190] [failure to
follow regulations in administering breath test goes to weight, not admissibility, of
the evidence]; People v. Williams (2002) 28 Cal.4th 408, 417 [121 Cal.Rptr.2d 854,
49 P.3d 203] [same]; People v. Esayian (2003) 112 Cal.App.4th 1031, 1039 [5
Cal.Rptr.3d 542] [results of blood test admissible even though phlebotomist who
drew blood not authorized under title 17].)
Give the bracketed sentence stating that “it is not a defense that something else
also impaired (his/her) ability to drive” if there is evidence of an additional source
of impairment such as an epileptic seizure, inattention, or falling asleep.
On request, give CALCRIM No. 2241, Driver and Driving Deﬁned.
CALCRIM No. 2111, Driving With 0.08 Percent Blood Alcohol.
CALCRIM No. 2125, Driving Under the Inﬂuence or With 0.08 Percent Blood
Alcohol: Prior Convictions.
CALCRIM No. 2126, Driving Under the Inﬂuence or With 0.08 Percent Blood
Alcohol: Prior Convictions—Bifurcated Trial.
• Elements Veh. Code, § 23152(a).
•Alcoholic Beverage Deﬁned Veh. Code, § 109; Bus. & Prof. Code, § 23004.
• Drug Deﬁned Veh. Code, § 312.
VEHICLE OFFENSES CALCRIM No. 2110
• Driving Mercer v. Dept. of Motor Vehicles (1991) 53 Cal.3d 753, 768 [280
Cal.Rptr. 745, 809 P.2d 404].
• Presumptions Veh. Code, § 23610; Evid. Code, § 607; People v. Milham
(1984) 159 Cal.App.3d 487, 503–505 [205 Cal.Rptr. 688].
• Mandatory Presumption Unconstitutional Unless Instructed as Permissive
Inference People v. Roder (1983) 33 Cal.3d 491, 497–505 [189 Cal.Rptr. 501,
658 P.2d 1302].
• Under the Inﬂuence Deﬁned People v. Schoonover (1970) 5 Cal.App.3d 101,
105–107 [85 Cal.Rptr. 69]; People v. Enriquez (1996) 42 Cal.App.4th 661,
665–666 [49 Cal.rptr.2d 710].
• Manner of Driving People v. Weathington (1991) 231 Cal.App.3d 69, 84 [282
Cal. Rptr. 170]; People v. McGrath (1928) 94 Cal.App. 520, 524 [271 P. 549].
• Legal Entitlement to Use Drug Not a Defense Veh. Code, § 23630.
• Prior Convictions People v. Weathington (1991) 231 Cal.App.3d 69, 90 [282
Cal. Rptr. 170].
2 Witkin & Epstein, California Criminal Law (4th ed. 2012) Crimes Against Public
Peace and Welfare §§ 272–277.
2 Witkin, California Evidence (5th ed. 2012), Demonstrative, Experimental, and
Scientiﬁc Evidence § 56.
6 Millman, Sevilla & Tarlow, California Criminal Defense Practice, Ch. 145,
Narcotics and Alcohol Offenses, § 145.02 (Matthew Bender).
LESSER INCLUDED OFFENSES
If the defendant is charged with felony driving under the inﬂuence based on prior
convictions, then the misdemeanor offense is a lesser included offense. The court
must provide the jury with a verdict form on which the jury will indicate if the
prior convictions have been proved. If the jury ﬁnds that the prior convictions have
not been proved, then the offense should be set at a misdemeanor.
• Attempted Driving Under the Inﬂuence Pen. Code, § 664; Veh. Code,
§ 23152(a); People v. Garcia (1989) 214 Cal.App.3d Supp.1, 3–4 [262 Cal.Rptr.
“[S]ection 23152 requires proof of volitional movement of a vehicle.” (Mercer v.
Dept. of Motor Vehicles (1991) 53 Cal.3d 753, 768 [280 Cal.Rptr. 745, 809 P.2d
404].) However, the movement may be slight. (Padilla v. Meese (1986) 184
Cal.App.3d 1022, 1029 [229 Cal.Rptr. 310]; Henslee v. Dept. of Motor Vehicles
(1985) 168 Cal.App.3d 445, 450–453 [214 Cal.Rptr. 249].) Further, driving may be
established through circumstantial evidence. (Mercer,supra, 53 Cal.3d at p. 770;
People v. Wilson (1985) 176 Cal.App.3d Supp. 1, 9 [222 Cal.Rptr. 540] [sufficient
CALCRIM No. 2110 VEHICLE OFFENSES
evidence of driving where the vehicle was parked on the freeway, over a mile from
the on-ramp, and the defendant, the sole occupant of the vehicle, was found in the
driver’s seat with the vehicle’s engine running].) See CALCRIM No. 2241, Driver
and Driving Deﬁned.
PAS Test Results
The results of a preliminary alcohol screening (PAS) test “are admissible upon a
showing of either compliance with title 17 or the foundational elements of (1)
properly functioning equipment, (2) a properly administered test, and (3) a qualiﬁed
operator . . . .” (People v. Williams (2002) 28 Cal.4th 408, 417 [121 Cal.Rptr.2d
854, 49 P.3d 203].)
Presumption Arising From Test Results—Timing
Unlike the statute on driving with a blood alcohol level of 0.08 percent or more,
the statute permitting the jury to presume that the defendant was under the
inﬂuence if he or she had a blood alcohol level of 0.08 percent or more does not
contain a time limit for administering the test. (Veh. Code, § 23610; People v.
Schrieber (1975) 45 Cal.App.3d 917, 922 [119 Cal.Rptr. 812].) However, the court
in Schrieber,supra, noted that the mandatory testing statute provides that “the test
must be incidental to both the offense and to the arrest and . . . no substantial time
[should] elapse . . . between the offense and the arrest.” (Id. at p. 921.)
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