Blood Alcohol Concentrations and Breath Alcohol in a San Diego 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 drunk driving laws are 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 a San Diego DUI attorney who is knowledgable in the science of blood-alcohol analysis (PDF Download).

"Police Notebook" BAC Calculator
Online breath-alcohol concentration computor from the University of Oklahoma Police Department.

Beer Calculator
A relatively sophisticated online calculator just for beer drinkers, factoring in your weight, percent alcohol in beer, beer serving size, number of servings, sex and average metabolism rate (with information for estimating rate).

Blood Alcohol Content
Coverage of the physiology, metabolism and effects of alcohol consumption, as well as the legal considerations.

Charts of Blood Alcohol Levels and Effects
Chart showing blood alcohol levels based upon weight and number of drinks, as well as changing physical, mental and emotional reactions at those levels.

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