Michigan's Leading Drunk Driving Defense Attorney

Defending drunk driving cases for over 30 years across Michigan.
Court-Qualified Expert Witness · SFST · Datamaster · Intoxilyzer 9000

(734) 941-8800 — Romulus / Detroit Metro Airport

Michigan DUI Defense Services

Comprehensive OWI/DUI Defense Throughout Metro Detroit and Wayne County

First Offense OWI

Aggressive defense for first-time drunk driving charges. We challenge breath tests, field sobriety tests, and the legality of the traffic stop.

District Court

Second Offense OWI

Aggressive defense for repeat drunk driving charges. A second offense carries substantially greater penalties and requires immediate, experienced representation.

Repeat Offense

Third Offense OWI

Felony drunk driving defense for clients facing life-changing consequences, including prison exposure, license revocation, and vehicle forfeiture issues.

Felony Defense

Super Drunk / High BAC

Defense against Michigan's High BAC (.17 and above) charges carrying enhanced penalties including mandatory vehicle immobilization.

Enhanced Penalties

Breath Test Challenges

Court-qualified expert in Datamaster DMT and Intoxilyzer 9000 breath testing. We identify instrument errors, procedural violations, and invalid results.

Expert Witness Qualified

Field Sobriety Test Defense

NHTSA-certified SFST instructor and expert witness. We challenge improper test administration, environmental conditions, and officer qualifications.

SFST Expert

Impaired Driving / OWVI

Strategic advice and defense concerning pleas to impaired driving, including whether an OWVI resolution is advantageous under the facts of your case.

Plea Analysis

License Restoration

Representation before the Michigan Secretary of State Driver Assessment and Appeal Division. Restore your driving privileges after OWI conviction.

DAAD Hearings

OWI Blood Test Cases

Defense against blood alcohol test results. We challenge chain of custody, improper collection and preservation, laboratory methodology, and the accuracy of GC-FID analysis.

Forensic Blood Analysis

Attorney William J. Maze

Attorney William J. Maze

Michigan DUI Defense Attorney · Romulus Office Near Detroit Metro Airport

William J. Maze has been defending drunk driving cases for over 30 years across Michigan. He frequently lectures on DUI defense law and techniques, and is a court-qualified expert witness in standardized field sobriety testing, Datamaster breath testing, and Intoxilyzer 9000 breath testing.

  • Court-Qualified Expert Witness — SFST, Datamaster DMT, Intoxilyzer 9000
  • NHTSA-Certified SFST Instructor
  • Former President — Criminal Defense Attorneys of Michigan (2014–2015)
  • Former Adjunct Professor — Forensic Science, Madonna University
  • Member — National College for DUI Defense
  • Member — National Association of Criminal Defense Lawyers
  • Board Member — Michigan Association of OWI Attorneys

Awards & Recognition

DBusiness Top Lawyers Metro Detroit 2011 DBusiness Top Lawyers Metro Detroit 2012 DBusiness Top Lawyers Metro Detroit 2013 Top Attorneys — Michigan's Outstanding Young Lawyers 2011 Top Attorneys in Michigan 2012 — As Published in The New York Times
Criminal Defense Attorneys of Michigan — Former President National Association of Criminal Defense Lawyers — Member National College for DUI Defense — Member DBusiness Top Lawyers Super Lawyers

Metro Detroit DUI Attorney — Three Office Locations

Downtown Detroit

(313) 792-8800

Romulus / Detroit Metro Airport

(734) 941-8800

Client Testimonials

Kind words from former clients.

One of the best
Mr Maze went way above to get a not guilty verdict . this was an accident case. Mr Maze for 16 months investigated, reviewed and sought out evidence and after a three to four hours deliberation came out with a not guilty verdict. I will recommend him to anyone.
Gayle
AVVO
The only lawyer to have by your side
I was a new graduate looking to begin my career and knew that this charge could have detrimental consequences to my future. Knowing the situation that I was in, I started to research lawyers and found that William stood out among the rest. He seemed to have the most determined personality and a drive to be the best. His reputation, certifications, memberships, and trial experience showed me that he really cared about what he did and was going to fight until the bitter end. His staff was very professional, informative, and helpful whenever I had questions or concerns. I always got quick responses and would be able to talk to Maze directly if I needed too. He was always prepared and knew exactly what our next move was going to be. I was walked through each part of my case and was never left in the dark. These factors let me know my case was always a priority. From the first day I met William he made me feel comfortable that my case was being handled by the right person and that he was going to do anything to work in my best interest. During this long case and many courtroom visits, William was able to keep my mind at ease, even when I felt I had no chance. I would even have a boost of confidence when he simply walked into the courtroom. This was because everyone knew who he was, and they knew it wasn't going to be easy. I am proud to say that I know William Maze and believe he will only get better as time goes forward. When the final day came, I finally heard the result of all his hard work. CASE DISMISSED!! "I recommend William as the only person you should have by your side during this time in life" "You gave me my life back, Thank You!"
AVVO
Amazing attorney -- turned a scary DUI into a careless driving! I can't thank Mr. Maze enough for everything he did for me. I was facing a serious DUI charge with a BAC of .246, and I truly thought my life and license were over. He fought hard for me, stayed in constant communication, and never treated me like just another case. Because of Mr. Maze dedication and knowledge of the law, my DUI was completely reduced to a careless driving -- which is unbelievable given the situation. He knew exactly how to handle the court process, spoke on my behalf with confidence, and made sure I understood every step along the way. If you're looking for someone who's professional, experienced, and actually cares about their clients, I highly recommend Mr. Maze Truly life-changing representation!
K D
Google
Best Attorney! Turned my whole case around which I thought was impossible!
Back in August I caught 6 charges including A DUI. Maze got my DUI reduced to a non-alcohol-related offense. And all of my other charges dissmissed. In which this kept a drunk driving conviction off my record, and other charges off my criminal record which made a huge difference for my future. This guy is the TRUTH and knows his stuff and will go through every tooth, nail, and detail to defend your case as such! When fighting for your record it's very important to have a knowledgeable experienced attorney, I was so scared for my future at first but Maze helped ease my anxiety and gave me the peace of mind and confidence I needed that we were going to beat this case with facts! Just as we did! The professionalism and dedication to my case exceeded my expectations. I would highly recommend Maze Legal to anyone facing DUI charges. I was very pleased with the outcome of my case.
AVVO
 

William Maze Videos

Videos and presentations. Attorney Maze is available to consult with media on all DUI charges, forfeiture cases, and FOIA issues.

Attorney William Maze explains why you should refuse a Preliminary Breath Test in Michigan

Overview of Michigan DUI 

A complete walk-thru on Michigan OWI charges from start to finish, including how to select a Michigan DUI attorney and how to plan ahead.

  • Choosing an Attorney
  • Reasonable Goals
  • What Will Happen?
  • Step-By-Step

Watch on YouTube →

Attorney William Maze explains why field sobriety tests are designed for failure

Should You Submit to Field Sobriety Tests?

No. You always fail field sobriety tests, no matter how well you perform the tasks. Worse still — you always look guilty trying to perform FSTs.

  • SFST
  • Walk and Turn
  • One Leg Stand
  • HGN
  • NHTSA

Watch on YouTube →

Attorney William Maze on Michigan drugged driving enforcement and prescription medication charges

Did You Refuse to Blow? Oh no!

Michigan's implied consent laws, one-year suspension, and how you can save your driver's license following a refusal.

  • Chemical Test Refusals
  • Breath vs. Blood Tests
  • 14 Day Requirement
  • DLAD & Circuit Court

Watch on YouTube →

Facing a DUI Charge in Michigan?

Call our Romulus office immediately for a free, confidential case evaluation.
Available evenings and weekends. Near Detroit Metro Airport.

(734) 941-8800 — Call Now   Free Online Evaluation

Another controlled test on an Intoxilyzer 9000 produced readings of 0.103, 0.086, and 0.080 taken roughly ten minutes after drinking. The declining pattern is consistent with dissipating mouth alcohol, yet the instrument still did not flag contamination. See Michigan State Police Intoxilyzer 9000 Validation Study, Report No. 353300055 (2023).
Most people I represent in drunk driving cases describe a version of the same evening. They were stopped on the shoulder of a road they had driven a thousand times.
Memorial Day weekend is one of the moments in the year when ordinary plans can turn into criminal cases very quickly.
An exclusive Channel 2 Action News investigation published on April 7, 2026, found that 701 Georgians arrested for driving under the influence in 2025 had no illegal or prescriptio
Why Michigan Narcotics-Detection Dogs Trained on Marijuana Need a Hard Look After People v ArmstrongSeveral years into Michigan's recreational-marijuana era, I am still asked some version
When Discovery Comes With an Invoice: A Recent Interlocutory Appeal Out of the 16th District Court 
Single-Column Gas Chromatography and a Bungled HGN Test: How State v.