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Drug DUI

Drug DUI Attorney in Scottsdale

Former DUI Prosecutor Applying Forensic Insight to Your Defense

Drug DUI charges can involve two distinct allegations: impairment by a drug or the presence of a drug or metabolite in the body. Prescription medication, cannabis, and other controlled substances can lead to charges, but a laboratory result doesn’t automatically establish when a substance was consumed or how it affected someone while driving.

As a DUID attorney serving Scottsdale, I draw on my experience as a former prosecutor and advanced training in DUI forensics. I examine the basis for the traffic stop, the officer’s observations, recorded evidence, chemical testing, and the timing of key events. When you hire The Koplow Law Firm, I handle your case personally rather than passing it to a junior associate.

Call (602) 560-7837 for a free consultation about your drug DUI charge, chemical test, court date, or driver-license notice.

How I Examine Drug DUI Evidence & Constitutional Questions

I founded The Koplow Law Firm in 2005 after working as a DUI prosecutor for the state. That background allows me to assess how prosecutors build a case, which assumptions support their theory, and where the evidence may fall short of proving the filed charge.

I examine the legal basis for the stop, the officer’s account, and the time between driving and testing. I also scrutinize sample collection, chain of custody, laboratory methods, and the interpretation of reported results. Depending on the facts, constitutional questions may arise from a search, questioning, the seizure of biological evidence, or the testing procedure.

A Defense Built Around Your Facts, Not Assumptions

I develop your defense around the charge, available evidence, testing history, and circumstances specific to you. I’m frequently asked to train attorneys in Arizona and other states on DUI and vehicular-crimes defense, which requires careful attention to scientific evidence and changing legal authority.

I received the 2015 Outstanding Contribution to DUI Defense Award from Arizona Attorneys for Criminal Justice and the organization’s President’s Commendation. I was also recognized by Southwest Super Lawyers in 2019.

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The Scottsdale Drug DUI Court Process

A misdemeanor case in Scottsdale City Court generally begins with an arraignment, where the court addresses the charge and the defendant’s rights before a plea is entered. After a not-guilty plea, the court may schedule a pretrial conference to discuss the case and a possible resolution. Depending on the facts and procedural history, the case may then proceed through motions, negotiations, or trial.

Discovery & Charging in Scottsdale

Discovery may include the citation, police reports, witness information, video, chemical-testing records, and laboratory materials. Scottsdale’s Prosecution Division handles misdemeanor DUI charges arising within the city. Depending on the charge, felony cases may be prosecuted by the Maricopa County Attorney’s Office or the Arizona Attorney General’s Office.

The court, schedule, and available proceedings depend on where the alleged conduct occurred, the filed charge, prior convictions, and any alleged aggravating circumstances.

The Separate Arizona Driver-License Process

The criminal charge and the Arizona Motor Vehicle Division matter are separate proceedings. Arizona implied consent rules can produce a license suspension without a criminal conviction, and resolving the court case doesn’t necessarily resolve the administrative matter.

The Arizona Department of Transportation states that a person generally has 30 days from the suspension notice to request a hearing. Potential consequences differ depending on whether testing occurred, testing was refused, or a conviction is later entered. I review the suspension notice, test-request information, collection timeline, and surrounding circumstances when evaluating the license issue.

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Hear From the People We’ve Helped

Testimonials and Reviews

Get a Clear Review of Your Drug DUI Case

I examine both the criminal charge and any separate driver-license matter through a forensic, fact-driven review. Contact me to discuss the arrest, citation, testing procedure, license notice, and upcoming court dates.

I’m available 24/7 and offer free consultations. If you need to meet remotely, you can speak with me through a virtual consultation. Your case receives my direct, judgment-free attention from the start.

Call (602) 560-7837 to discuss your Scottsdale drug DUI allegation with me.

    "Great trial attorney."

    Lawrence is tenacious, relentless, and extremely passionate about his clients and their cases. He leaves no stone unturned in his investigations, and his cross examinations are grueling. His knowledge of the science of DUI's and the testing procedures is unsurpassed. Great trial attorney.

    - Jesse S.
    "Unquestionably one of the top DUI/ criminal defense attorneys in Arizona."
    As a practicing attorney in DUI and criminal defense, and as a former prosecutor who went against Lawrence on several cases, I can attest that the State knows they will have their hands full when Lawrence is on the case.
    - Ryan M.
    "You cannot go wrong with Lawrence."

    Great attorney! Lawrence thinks outside the box and goes above and beyond for his clients and the legal community at large. If you are looking for aggressive representation, you cannot go wrong with Lawrence.

    - Charity C.
    "No other lawyer knows the science of DUI like Lawrence does."
    Lawrence is the best lawyer I have ever met. If your career is on the line then he is the guy. No other lawyer knows the science of DUI like Lawrence does. I will be forever grateful!
    - Greg S.
    "It was miracle!"

    It was miracle!... A lot of people don't really understand the benefit of having an attorney who used to be a prosecutor. They know all the little tricks and scare tactics the state has as opposed to just hiring an attorney who is a little fish in a big pond.

    - Joe C.
    "One of the best."
    Lawrence Koplow is one of the best DUI and vehicular defense attorneys in the state of Arizona. Anyone would be extremely fortunate to have him as their advocate.
    - Jack L.
    "You cannot go wrong with Lawrence."
    Lawrence thinks outside the box and goes above and beyond for his clients and the legal community at large. If you are looking for aggressive representation, you cannot go wrong with Lawrence.
    - Charity C.
    "Nobody knows the court and laws better than him."
    Lawrence represents very high-profile clients who greatly depend on a good outcome, and this guy will deliver. This is a prosecutors' worse nightmare, and it should be that way if you need an attorney.
    - David E.

DUI Library

The best DUI defense stuff that only a few know and none want to share. A one of a kind annotated resource for lawyers, people accused, or anyone who wants to see what’s going on in our justice system with DUI cases… and how to fix it.

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  • Restoring Lives, Protecting Rights

    We fight to protect our clients’ constitutional rights, restore their dignity, and help them regain control of their lives. Your case is not just another file—it’s your future, and we are here to help you move forward.

  • Forensic Knowledge You Can Trust

    We have an in-depth understanding of forensic science, which allows us to uncover flaws in evidence that others often miss. By challenging faulty forensic tests, we’ve achieved countless successes for our clients.

  • Leaders in DUI Defense Training

    Our attorney is frequently invited to train lawyers in Arizona and across the nation on DUI and vehicular crime defense. This reputation as a trusted educator demonstrates the depth of our knowledge and expertise.

  • Personalized Representation

    When you choose our firm, you work directly with the attorney handling your case. We are dedicated to providing a 1-on-1 relationship to fully understand your unique circumstances and craft a defense strategy specifically for you.

  • Creative and Strategic Defense

    Our innovative and tailored defense strategies set us apart. Judges and lawyers recognize our firm for pushing boundaries and challenging the status quo to achieve the best possible results for our clients.

  • Decades of DUI Defense Experience

    With over 20 years of combined experience as a former DUI prosecutor, Attorney Koplow brings unparalleled knowledge to the table.