Phoenix DUI Attorney

Arrested for Driving Under the Influence in Arizona?

Arizona enforces strict laws for driving under the influence of drugs or alcohol. In Arizona, you are prohibited from operating a motor vehicle if your blood alcohol concentration (BAC) is 0.08% or higher and you can face severe criminal penalties, driver's license suspension, and long-term consequences if charged.

If you or someone you love has been arrested for DUI, you need a Phoenix DUI lawyer from Knowles Law Firm, PLC.

Act Fast. You Only Have 15 Days to Request an MVD Hearing.

If a Phoenix law enforcement officer suspects you of driving under the influence, he or she has the right to pull you over and test your BAC level.

This will typically be done through a field sobriety test, breath test or blood test. If your BAC is 0.08 or more, you will likely be arrested, taken into police custody, and charged for DUI.

Contact the Phoenix DUI lawyers at Knowles Law Firm, PLC for a FREE review by calling (602) 702-5431or using our online contact form.

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Why Choose our Firm?

what Arizona laws consider driving under the influence:

  1. Operating a motor vehicle while under the influence of alcohol (to the point of impairment), any drug, any vapor-releasing substance, or any combination thereof.
  2. Having a blood alcohol content (BAC) level of 0.08 or greater within two hours of driving or being in physical control of a motor vehicle.
  3. For drivers of commercial motor vehicles, driving under the influence of alcohol with a BAC level of 0.04 or greater.

Hiring a knowledgeable DUI attorney in Phoenix who fully understands Arizona's laws and procedures is essential when facing drunk driving allegations. A DUI lawyer can also protect your legal rights and defend you from the penalties you face.

DUI Process Defined in Phoenix

All Arizona DUI cases will result in two separate legal processes: a criminal case and an administrative hearing with the Arizona Motor Vehicle Division (MVD).

MVD Hearings

MVD administrative hearings concern only your driving privileges and are separate from criminal proceedings. MVD hearings do not address whether you are guilty of committing the criminal act of driving under the influence, and will not result in any other criminal penalties aside from driver's license suspension. In Phoenix, after a DUI arrest, you must request an MVD hearing within 15 days or face an automatic license suspension.

Criminal Case

The DUI process will also involve proceedings in a criminal court, where you will be charged for violating an Arizona law.

Criminal proceedings will concerns whether you are guilty or innocent of the charge at hand and will determine which criminal penalties you will face. In some DUI cases, you may also be able to reach agreements to reduce or dismiss charges / penalties.

Having a criminal defense attorney by your side at all point during the DUI process is crucial. At Knowles Law Firm, PLC, our Phoenix DUI lawyers represent clients during both MVD hearings and criminal proceedings, and our attorneys fight aggressively on their behalves.

DUI Penalties & Effects on Your Life

With any drunk driving charge, individuals face criminal and administrative penalties.

If convicted of driving under the influence, an individual will face criminal penalties such as:

  • Possible jail time
  • Fines
  • Driver's license suspension
  • Drug or alcohol counseling
  • Ignition interlock device (IID)

Aside from these consequences, there are also collateral consequences. Some of these collateral consequences are mandated by statute and others are simply consequences of a drunk driving conviction. Listed below are some common collateral consequences of DUI offenses.

  • ​​​​​Increased insurance rates or loss of coverage
  • Loss of professional licenses, including nursing, teaching, and legal licenses
  • Loss of employment
  • Inability to pass security clearances

Our criminal defense lawyers in Phoenix understand how far-reaching the consequences of a DUI are, which is why our ultimate goal is to get your DUI charges dismissed or reduced to a lower charge such as reckless driving.

Understanding Your Rights During a DUI Stop

It's important to know and understand your rights if you are pulled over for suspicion of driving under the influence. Our experienced Phoenix DUI attorneys can provide you with valuable information on what to do and say during a DUI stop to protect your rights and ensure the best possible outcome for your case.

Key rights to remember during a DUI stop include:

  • The right to remain silent
  • The right to refuse field sobriety tests
  • The right to request an independent blood alcohol test
  • The right to legal representation

Knowing and asserting your rights during a DUI stop can make a significant difference in the outcome of your case. Contact our Phoenix DUI attorneys for expert legal guidance and representation.

DUI Resources

Arrested for drunk driving in Phoenix, AZ? View some of our helpful resources so you can know your rights and legal recourse after a DUI arrest.

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  • “Very professional, friendly and knowledgeable, ready to answer any questions and were just a helping hand during harsh times.” - Former Client
  • “Right away they found an error made by the prosecution and were able to get a significantly better plea offer.” - Former Client
Meet Our Team Experienced Attorneys Dedicated to Your Best Result


With former prosecutors, a former Arizona police officer, and years of criminal defense experience on our side, our legal team knows how to handle the full range of DUI charges, including:

Discuss Your DUI Case During a FREE Case Review

DUI attorney Anthony Knowles and our experienced Phoenix DUI defense team want nothing more than to provide you with the superior defense you need to fight your DUI charges and maximize the chances of winning your criminal case!

To set up a free consultation with our Phoenix DUI lawyers, contact us today by calling (602) 702-5431.

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