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What is DWI?

DWI, or Driving While Intoxicated, in Texas means that someone is operating a motor vehicle while "intoxicated" in a public place. "Intoxicated" is legally defined in the state of Texas as either 1) Not having the normal use of ones mental or physical faculties, or 2) having an alcohol concentration of .08% or more.

Alcohol concentration can be measured in three different ways. The most familiar is the breath test, but an officer is authorized to take blood or urine as well. Concentration is defined as: a) the number of grams of alcohol per 100 milliliters of blood, b) the number of grams of alcohol per 210 liters of breath; or c) the number of grams of alcohol per 67 milliliters of urine.

Additonal DWI Frequently Asked Questions

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