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Trusted DUI Defense Attorney in Phoenix, AZ
Founded on the principle that DUI and vehicular crime defense should never be a hopeless endeavor, Koplow Law Firm brings over 25 years of specialized expertise to Phoenix and Scottsdale, Arizona. As a former DUI prosecutor, I leverage insider knowledge of forensic sciences and Arizona law to dismantle evidence, challenge constitutional violations, and secure reduced charges or dismissals. Our client-centric approach prioritizes personalized attention, methodical analysis of overlooked evidence, and strategic preparation for trial, ensuring every case benefits from evolving legal standards and a relentless commitment to justice.

Recognized by Arizona Attorneys for Criminal Justice, the National College for DUI Defense, and Super Lawyers, we combine forensic acumen with innovative defense tactics to protect rights and restore lives. With a focus on transparency and education, we empower clients through complex legal processes while navigating local enforcement patterns unique to Phoenix's DUI landscape.
Services
DUI Defense Vehicular Assault Felony DUI Aggravated DUI Vehicular Manslaughter Drug DUI
Highlights and features
  • We offer 25+ years of specialized DUI defense experience as a former prosecutor.
  • Our team leverages forensic science expertise to challenge flawed evidence.
  • We provide personalized, client-centric representation for every case.
  • Our strategies adapt to evolving Arizona DUI laws and judicial interpretations.
  • Recognized by Super Lawyers and national DUI defense organizations.
Associations and certifications
  • Arizona Attorneys for Criminal Justice (AACJ)
  • National College for DUI Defense
  • Arizona's Super Lawyers (2019-2025)
What people say
Great trial attorney Top DUI attorney in Arizona Aggressive representation Unmatched forensic knowledge Life-changing results
Services
DUI Defense
Our DUI defense service challenges blood alcohol evidence, field sobriety tests, and procedural violations. We leverage forensic expertise to identify flawed testing methods and constitutional breaches, aiming to reduce charges or secure dismissals. With Arizona's strict DUI laws, our former prosecutor's insight helps navigate complex legal standards while protecting driving privileges and minimizing penalties.
Vehicular Manslaughter
We defend against vehicular manslaughter charges by scrutinizing accident reconstructions, toxicology reports, and witness statements. Our approach challenges prosecution evidence while addressing mitigating circumstances. With potential penalties including prison time, our team focuses on creating reasonable doubt through expert forensic analysis and strategic courtroom representation tailored to Arizona's vehicular crime statutes.
Felony DUI
Our felony DUI defense targets repeat offense charges by examining prior conviction validity and evidence collection procedures. We challenge enhanced penalties through constitutional arguments and forensic challenges, focusing on procedural errors during arrests. Our strategy includes negotiating alternative sentencing options while maintaining aggressive courtroom representation to protect clients' futures.
Aggravated DUI
We defend aggravated DUI charges involving factors like extreme BAC levels, minor passengers, or license suspensions. Our approach examines breathalyzer calibration records, officer training documentation, and legal justification for enhanced charges. We focus on reducing mandatory minimum sentences through evidence suppression and alternative interpretation of aggravating circumstances under Arizona law.
Drug DUI
Our drug DUI defense challenges field sobriety test reliability and drug recognition expert methodologies. We analyze blood test chain-of-custody records and lab analysis procedures to identify procedural flaws. With Arizona's zero-tolerance drug policies, our team focuses on creating reasonable doubt about impairment through toxicology experts and alternative explanations for observed behaviors.
People
Lawrence Koplow
Attorney & Founder
Award-winning DUI defense attorney with 25+ years of experience as former prosecutor. Recognized by Super Lawyers and National College for DUI Defense. Specializes in challenging forensic evidence and constitutional violations in vehicular crime cases.
Questions
What are Arizona's strictest DUI penalties?
Arizona enforces zero-tolerance for drugs, with mandatory license suspension, fines, and potential jail time for DUI convictions.
How does a former prosecutor help my case?
Insider knowledge of prosecution strategies allows us to anticipate moves, challenge evidence flaws, and negotiate effectively.
Are ignition interlock devices required?
Yes, Arizona mandates ignition interlock devices for most DUI convictions to prevent repeat offenses.
What should I do immediately after a DUI arrest?
Contact our firm immediately to preserve evidence, document details, and begin building your defense strategy.
Can DUI charges be reduced?
Yes - our track record shows successful charge reductions through forensic challenges and constitutional violations.