Society wants you to believe that consuming any amount of alcohol and getting behind the wheel is illegal. It is not. What is illegal is driving while impaired to the slightest degree, or having a blood alcohol concentration (BAC) of .08% or more within two hours of driving. Impairment could be from alcohol, but also from recreational and even prescriptions drugs. Arizona presumes you to be impaired if you have a BAC of a .08% or higher.
Even though Arizona has some of the toughest DUI laws in the country, there is no law making it illegal for a person of age to consume alcohol and drive. A person can enjoy any amount of alcohol and drive so long as when they drive they are not impaired to the slightest degree or above a .08% BAC within two hours of driving. There are many factors that govern how fast alcohol enters the body. No two people are the same and no two people absorb or eliminate alcohol at the same rate. There are several web-pages that provide general charts that show how alcohol is absorbed and eliminated in the body.
With the Fourth of July weekend coming up, Arizona police and sheriffs departments will be out in force and will be strictly enforcing the traffic laws in an effort to catch people driving under the influence. Drinking responsibly and obeying all the traffic laws is an easy way to avoid a DUI. However if you are stopped and a DUI investigation is conducted invoke your right to be silent and ask politely to speak to a lawyer who will then be in a position to counsel you on what to do during the investigation.