Blood Alcohol Concentrations and Breath Alcohol in an Orange County DUI Arrest

The results of the breath test, blood test or urine test will largely determine the charges brought and the possible sentences. The so-called "per se" offense (driving over .08%) is defined by the blood-alcohol level; the "DUI" offense (driving under the influence) is partially proven with a rebuttable presumption of intoxication if the result is over .08%.

It is important to realize that the DUI laws relate to the blood-alcohol level AT THE TIME OF DRIVING — not at the time of the test; there may be a significant difference, not to mention difficulties of proof. It is also important to understand that tests — particularly breath tests — are unreliable and susceptible to attack by an Orange County DUI attorney who is knowledgable in the science of blood-alcohol analysis (PDF File).

How Alcohol Works
Discussion of the nature of alcohol, its metabolism and effects, by Dr. Craig Feudenrich.

Alcohol and the Human Body
A good basic discussion of the physiological process of alcohol absorption and elimination, the alcohol levels of various drinks and the effects of food, tolerance, gender, etc.

Cool Nurse
Fairly basic online blood alcohol calculator using weight, hours drinking, ounces consumed and alcohol percentage of drinks.

Blood Alcohol Charts for Men and Women
Charts indicating blood-alcohol levels based on drinks and weight, together with chart showing mental, physical and emotional changes at different levels.

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