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California Drunk Driving: The Offense Expert DUI defense from the pioneers who set the standard

California Drunk Driving: The Offense

To begin with, the term “drunk driving” is legally incorrect. “Drunk” is a concept used for the offense commonly known as “public intoxication” or “drunk in public,” a violation of California Penal Code section 647(f). 

The offense consists of being in a public place under the influence of alcohol or drugs to the extent that a person “is unable to exercise care for his or her own safety or the safety of others.” Driving is not involved, and the degree of intoxication is considerably greater than that prohibited by “drunk driving” statutes.

The correct term is “driving under the influence,” commonly referred to as DUI, and this can be from alcohol, marijuana or drugs, or a combination of these. The drugs do not have to be illegal; prescribed drugs are included. The offenses are defined in California Vehicle Code section 23152:

(a) It is unlawful for a person who is under the influence of any alcoholic beverage to drive a vehicle. 

(b) It is unlawful for a person who has 0.08 percent or more, by weight, of alcohol in his or her blood to drive a vehicle… 

(e) It is unlawful for a person who is under the influence of any drug to drive a vehicle. 

(f) It is unlawful for a person who is under the combined influence of any alcoholic beverage and drug to drive a vehicle.

ARRESTED FOR DRUNK DRIVING?

Don’t face this alone. From criminal charges to license suspension, our award-winning team is here to fight for you. Call (562) 330-4173 to speak with an Orange County DUI attorney at our firm today.

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  • Reduced to Exhibition of Speed (fine) Original charge - Drunk Driving

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    Los Angeles - 6 months jail, fine, license suspension.

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    Riverside - 6 months jail, fine, license suspension.

  • Reduced to Reckless Driving (fine) Original charge - Drunk Driving (.21%)

    San Bernadino - 6 months jail, fine, license suspension.

  • Reduced to Exhibition of Speed (fine) Original charge - Drunk Driving

    Los Angeles - 6 months jail, fine, license suspension.

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What Legally Constitutes “Under The Influence”? 

The term is generally described as being impaired to the extent that the person is unable to exercise the same care and judgment as a reasonable prudent and sober driver. This is necessarily vague, and is usually proven by such evidence as police evidence concerning erratic driving, physical symptoms (slurred speech, poor balance and coordination, etc. and field sobriety tests. In trial, however, the defendant is legally presumed to be under the influence if a blood or breath test taken within 3 hours of driving indicates a blood-alcohol level (BAC) of .08% or higher; he may offer evidence to rebut this presumption.

A second and related offense is the so-called per se law. This offense consists simply of driving with a blood-alcohol level of .08% or greater. Being impaired or intoxicated is unnecessary and individual tolerance to alcohol is irrelevant: the offense consists solely of having the BAC concentration and driving. The offense is described in California Vehicle Code section 23152(b):

“It is unlawful for any person who has a 0.08% or more, by weight, of alcohol in his or her blood to drive a vehicle”

If the arrested individual takes a blood, breath or urine test indicating .08% BAC or higher, he will be charged with both offenses. Although he can be convicted of both, he cannot be punished for both (the penalties are identical). If there is no evidence of blood-alcohol, her will only be charged with DUI.

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