
Cases We Handle
- Aggravated DUI
- Breath Tests
- Blood Tests
- CDL DUI
- Dram Shop Liability
- DUI Laws in Arizona
- Underage DUI
- MVD Hearings
- Super Extreme DUI
- Unlawful Police Stops
- Vehicular Aggravated Assault
- Leaving the Scene
- DUI with Drugs
- DUI Process
- Extreme DUI
- Field Sobriety Tests
- Ignition Interlock Device (IID)
- License Suspension
DUI Attorney Phoenix
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 DUI attorney in Phoenix 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 right is backed by stringent DUI regulations that help uphold Arizona's commitment to road safety. Awareness of these regulations and understanding your rights can be pivotal at such times.
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. The tests must be administered following strict protocols to ensure accuracy and reliability. Any deviation from these protocols can be challenged in court to potentially mitigate the charges.
Understanding the difference between the tests and their implications is crucial. Field sobriety tests assess physical coordination, while breath and blood tests measure the alcohol level in your system. Knowing how each works can help in building an effective defense strategy.
Contact the DUI lawyers at Knowles Law Firm, PLC for a FREE review by calling (602) 702-5431 or using our online contact form

Case Victories
Always Striving For the Best Possible Outcome
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Dropped to Misdemeanor Disorderly Conduct Aggravated Assault
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Probation with no jail time Aggravated Assault
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Charge Reduced to a Misdemeanor Aggravated Assault
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Charge Reduced to a Misdemeanor Aggravated Assault
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Dismissed Aggravated Assault with a Deadly Weapon
What Arizona Laws Consider Driving Under the Influence:
- 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.
- 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.
- 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. They can investigate every aspect of your arrest to find procedural errors or violations of your rights that could lead to a reduction or dismissal of charges.
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). Navigating these processes requires a strategic approach that involves gathering evidence, interviewing witnesses, and preparing for potential negotiations or trials. Understanding the intricacies of both processes can better position you for a favorable outcome.
The criminal case addresses the legal implications of the DUI charge. This involves examining the evidence, from video footage to arrest reports, ensuring that every angle is covered. A robust defense often involves questioning the validity of the arrest or the test results, providing an opportunity to negotiate a plea or secure a more favorable ruling.
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. Preparing for this hearing involves presenting evidence and potentially challenging the reason for the traffic stop or the results of the sobriety tests.
During an MVD hearing, the focus is on procedural adherence. Factors such as the officer's justification for the traffic stop and the accuracy of the administered BAC test are examined. This hearing provides an opportunity to contest the suspension and work toward retaining driving privileges.
Criminal Case in Phoenix
The DUI process will also involve proceedings in a criminal court, where you will be charged for violating an Arizona law. The criminal case determines both guilt and the penalties, which can include fines, jail time, or mandatory counseling sessions. An experienced DUI defense attorney in Phoenix will work to gather evidence, potentially challenging the legality of the initial traffic stop or the validity of the test results. In some cases, plea bargaining might be a viable option to reduce the severity of penalties.
Having a criminal defense attorney by your side at all points during the DUI process is crucial. At Knowles Law Firm, PLC, our Phoenix DUI defense lawyers represent clients during both MVD hearings and criminal proceedings, and our attorneys fight aggressively on their behalves. They focus on achieving the best possible outcomes, whether it is negotiating a plea deal or fighting for an acquittal in court.
DUI Penalties & Effects on Your Life in Phoenix
With any drunk driving charge, individuals face criminal and administrative penalties. These penalties can have long-term impacts on your personal and professional life, making it difficult to maintain employment or advance in your career. The stigma associated with a DUI conviction can also strain personal relationships and community standing.
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. By engaging in proactive legal strategy, we help mitigate the potential fallout of a DUI arrest, working to preserve your future opportunities and quality of life.
Understanding Your Rights During a DUI Stop in Phoenix
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. Knowing your rights can prevent you from making common mistakes that may adversely affect your defense.
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. Refusing field sobriety tests, for instance, can prevent unreliable test results from being used against you in court. Contact our Phoenix DUI lawyers for expert legal guidance and representation.
Will I Lose My License After a DUI Arrest in Phoenix?
Facing a DUI arrest in Phoenix can be overwhelming, especially with the possibility of losing your driving privileges. Whether or not you will lose your license after a DUI arrest depends on several factors, including whether you submitted to a chemical test and your prior DUI history. Understanding the specific rules of your state's implied consent law is crucial in these situations.
In Arizona, under the state's Implied Consent Law, you are required to submit to a blood, breath, or urine test if law enforcement suspects you of driving under the influence. If you refuse to take the test, your license will be automatically suspended for one year, regardless of the outcome of your DUI case. This is an administrative penalty imposed by the Arizona Department of Transportation and is separate from any criminal charges you may face.
If you take the test and your blood alcohol concentration (BAC) is 0.08% or higher, or 0.04% or higher if you're operating a commercial vehicle, your license will also be subject to suspension. It’s important to note that you have the right to request a hearing to challenge the suspension of your license. An experienced DUI attorney in Phoenix can assist you in navigating this process, presenting evidence, and advocating on your behalf to potentially retain your driving privileges.
Losing your license can significantly impact your daily life, but understanding your rights and options is crucial. With proper legal guidance, you may be able to minimize the impact of a DUI arrest on your ability to drive. This may include exploring restricted driving permits or contesting the suspension through administrative channels.
DUI Defense Lawyer Phoenix: Our Criminal Defense Lawyers Handle All DUI Charges in AZ
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:
Our team tackles a broad spectrum of DUI charges, employing both proactive and reactive strategies tailored to your specific circumstances. Understanding the nuances, such as how an aggravated DUI differs from an underage DUI, ensures the right defense strategy is implemented. This comprehensive approach increases the likelihood of minimizing the impacts of a DUI charge on your life.
DUI charges are not limited to alcohol only but can include driving under the influence of drugs, both prescription and illegal. Each charge comes with its unique set of challenges and requires a tailored legal approach. Our team is equipped to handle all these complexities, delivering defense strategies that seek to protect your rights and your future.
Exploring DUI Defense Strategies in Phoenix
When facing a DUI charge, it's crucial to have a strong defense strategy in place to protect your rights and minimize the potential consequences. Our experienced Phoenix DUI defense attorneys at Knowles Law Firm, PLC are well-versed in a variety of defense tactics that can be tailored to your specific case. Both the circumstances leading to your arrest and the evidence available are crucial in selecting the appropriate strategy.
Some common DUI defense strategies include:
- Challenging the legality of the traffic stop
- Questioning the accuracy of field sobriety tests
- Disputing the results of breathalyzer or blood tests
- Arguing for a reduction in charges or penalties
- Negotiating for alternative sentencing options
By working closely with our skilled legal team, you can explore all possible defense strategies and options to achieve the best possible outcome for your DUI case. Our detailed approach includes scrutinizing the calibration records of breathalyzers and ensuring proper procedures were followed during any BAC testing. Contact Knowles Law Firm, PLC today to schedule a consultation and start building your defense.
Contact the DUI attorneys at Knowles Law Firm, PLC for a FREE review by calling (602) 702-5431 or using our online contact form.
DUI Resources for Phoenix Residents
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.
Frequently Asked Questions About DUI in Phoenix
What Happens If I Refuse a Breathalyzer Test in Phoenix?
Refusing a breathalyzer test in Phoenix can lead to immediate consequences due to Arizona's Implied Consent Law. When you are issued a driver's license in Arizona, you automatically consent to submit to breath, blood, or urine testing if suspected of DUI. Refusing to take a test can result in an automatic license suspension for one year. This suspension is independent of any criminal DUI charges and is purely an administrative action. However, you still have the right to contest this suspension by requesting a hearing with the MVD. Seeking legal assistance from a DUI lawyer in Phoenix can aid in navigating this process and potentially mitigating the suspension's effects.
Can I Negotiate a DUI Charge in Phoenix?
While negotiation isn't guaranteed, it is often possible to negotiate a DUI charge in Phoenix. Plea negotiations can sometimes lead to reduced charges or lighter penalties. This could mean less severe consequences, such as a reduced fine, less jail time, or a shorter license suspension. An experienced DUI lawyer in Phoenix can evaluate the evidence against you, identify weaknesses or procedural errors, and utilize these to negotiate better terms with the prosecution. Each situation is unique, so understanding your options and having skilled legal representation is crucial.
Are DUI Checkpoints Legal in Phoenix?
DUI checkpoints are legal in Phoenix and are widely used by law enforcement to deter drunk driving. At these checkpoints, officers typically stop vehicles in a systematic pattern, such as every third car, to screen for impaired drivers. While these checkpoints must meet legal requirements relating to their operation and notification to the public, they remain a valid method for identifying intoxicated drivers. During checks, it's vital to know your legal rights, such as refusing field sobriety tests, which can significantly affect the proceedings. Legal challenges can sometimes be mounted if the checkpoint's operation was not in compliance with statutory guidelines.
How Can a DUI Lawyer Help Me?
A DUI lawyer in Phoenix can provide essential expertise and representation throughout your legal journey, ensuring your rights are defended at every stage. They have the skills to scrutinize arrest reports, challenge faulty equipment used for testing, and question the constitutionality of the traffic stop itself. Often, DUI charges require detailed legal navigation that laypersons may find challenging. Having a lawyer with you can sometimes lead to reduced charges or the identification of options you hadn't considered. The goal is to mitigate the charges' impact and reestablish your normalcy with minimal disruption.
What Are Aggravated DUI Charges in Phoenix?
An aggravated DUI in Arizona is a serious charge that carries heavier penalties than a standard DUI. This charge may arise under conditions such as driving under the influence with a suspended license, having repetitive DUI offenses within a certain period, or driving drunk with a child in the vehicle. Penalties can include longer jail sentences, larger fines, and mandatory installation of an ignition interlock device. These offenses are considered felonies and can severely impact your life, affecting employment opportunities and your ability to drive legally. Understanding the seriousness of such charges is crucial, and immediate legal consultation is advised.

What Sets Us Apart
From The Rest?
Client Stories
Reviews From Past Clients
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Discuss Your DUI Charge With a DUI Lawyer in Phoenix 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 a favorable outcome! Our team is dedicated to thoroughly analyzing the details of your arrest, identifying opportunities to challenge evidence, and crafting a robust defense strategy.
To set up a free consultation with our DUI lawyers in Phoenix, contact us today by calling (602) 702-5431.
