How We Defend Marijuana DUI Cases in Arizona
What we examine when we compare officer observations, body-camera footage, roadside tests, and blood evidence.
Read the articleMarijuana DUI defense · Tucson, Arizona
Your case is
Your case is
more than
a THC result.
A marijuana DUI arrest can leave you worried about your license, your job, and what happens next. Start with a lawyer who will examine the evidence and help you understand your options.
AJB Law Firm, LLC · Phone, video, and in-person consultations
Amanda BynumYour attorney. Your advocate.
Arizona attorney since 2010Former law professorTucson nativeClear, flat-fee representation
Wherever you are in the process, start here.
You may have a court date. You may still be waiting for answers. We can talk through what comes next.
01 /
Recently arrested?
Bring your citation, release paperwork, and any license notices. We’ll help you identify the issues that need attention.
02 /
Waiting for blood results?
You can ask for advice before charges are filed. We’ll discuss what to watch for and whether there are steps to take now.
03 /
Already facing charges?
Let’s look at the allegations, the available evidence, and your priorities so you can make informed decisions about your defense.
Looking beyond the reportThe details deserve
The details deserve
a closer look.
A positive THC result is one part of the evidence. It does not, by itself, tell the whole story of what happened or how someone was driving.
My job is to compare the allegations with the records, recordings, testing, and law—and explain what that means for you.
Each case requires its own review
The stop and arrest
What prompted the stop? What did officers observe? Were the investigation and arrest supported by the facts and applicable law?
What the video actually shows
Body-camera footage can add context to a report. We compare the recording with descriptions of your speech, balance, behavior, and statements.
Roadside tests and officer opinions
Instructions, conditions, health concerns, training, and any Drug Recognition Expert evaluation can all matter when assessing the officer’s conclusions.
The blood test and the science
We evaluate the testing records, timing, and interpretation of the results, including whether independent expert input would help address disputed issues.
A strategy that fits your case
Evidence review informs the next steps: further investigation, appropriate motions, negotiation, or preparation for trial. We discuss the choices with you.
Meet your attorneyA courtroom advocate.
A courtroom advocate.
A teacher at heart.
I’m Amanda Bynum, founder of AJB Law Firm. I’m a Tucson native, former public defender, and former law professor. I’ve practiced law in Arizona since 2010.
Teaching is part of how I practice. I want you to understand what the evidence shows, where the challenges are, and what options are available. That includes honest conversations about both the strengths and weaknesses of your case.
You deserve to feel heard—and to understand the decisions ahead.
- Criminal & DUI defense
- Former law professor
- Local court experience
Amanda BynumFounder, AJB Law Firm, LLC
More about Amanda A clear next stepYou don’t have to figure
You don’t have to figure
everything out today.
Start with a conversation. We’ll discuss your situation, your concerns, and what representation would involve.
01
Tell us what’s happening.
Choose a free consultation by phone, video, or in person. Have your paperwork and upcoming dates handy if available.
02
Understand your options.
We’ll discuss what you’re facing, what matters to you, and the proposed fee and scope of representation.
03
Move forward with a plan.
Once you retain the firm, we begin the agreed work, review the evidence as it becomes available, and keep you informed.
From Amanda’s resource libraryGood questions.
Good questions.
Useful explanations.
Get a clearer picture of the evidence, the process, and the work involved in marijuana DUI defense.
The defense approach
Understanding the science
What Can a Forensic Toxicologist Do in an Arizona Marijuana DUI Case?
When a forensic toxicologist may help explain test results and evaluate the scientific issues in a marijuana DUI case.
Read the article
Before charges are filed
Arrested for DUI in Arizona but Not Charged?
What to know when you have been arrested but are still waiting for lab results or a charging decision.
Read the articleGeneral information, not advice about your specific case. Bring your questions to your consultation.
Before you callLet’s clear up
Let’s clear up
a few things.
These are common starting questions. Your charges, paperwork, and circumstances will guide the advice for your case.
Marijuana DUI explainedDoes a positive THC result mean I’m guilty?
No. A positive result is evidence to evaluate, not a verdict. Arizona law requires impairment for the marijuana-components-or-metabolites offense under A.R.S. § 28-1381(A)(3). The State’s evidence and the specific charges still need careful review.
Can you help before charges are filed?
Yes. A consultation can help you understand your paperwork, notices, and what to watch for while results or charging decisions are pending. Any representation before filing is discussed and agreed on separately.
What if I have a medical marijuana card?
Bring that information to the consultation. A medical marijuana card does not authorize impaired driving. Your card, the alleged conduct, and the charges are all part of assessing your case.
What happens to my driver’s license?
License proceedings can be separate from the criminal case. The answer depends on your notices, testing or refusal allegations, prior history, and other facts. Show us any MVD paperwork promptly so we can discuss the deadlines and options that apply to you.
Can we challenge the officer’s observations or tests?
We can evaluate the foundation for those conclusions: the video, instructions, conditions, training, records, and any alternative explanations. Whether a particular challenge is available or useful depends on the evidence.
What does representation cost?
The consultation is free. AJB Law Firm offers flat-fee representation, with the proposed fee and covered work explained before you hire us. Payment options and any expert costs are discussed for your particular case.
Your next step starts hereTell me what’s worrying you.
Tell me what’s worrying you.
Let’s talk it through.
Whether you have a court date or are still waiting for answers, you can start with a conversation about your marijuana DUI case.
Tucson & Pima CountyTucson · Marana · Oro Valley · Sahuarita · Green Valley
Ask about representation in your court.
Ask about representation in your court.
Free criminal defense consultationChoose a consultation time 520-333-7977
Phone, video, or in person.
Have your citation and court dates handy, if available.