Reviews

5 Star DUI Defense for DuPage County

Our clients trust Attorney Mike McMahon with their futures. We've helped hundreds of DuPage County drivers keep their licenses and stay out of jail after DUI arrests.

Read Client Success Stories →

"I was freaking out after getting pulled over coming home from my buddy's wedding. Never been in trouble before and had no clue what to do. Mike broke everything down in simple terms and spotted problems with how the cop did my field test. Thanks to him, my charges got knocked down big time. Still have my license and my job. Mike's the real deal!"

"As a nurse, I couldn't afford a DUI on my record. I was so stressed I could barely sleep. From our first meeting, Mike put me at ease and laid out a clear plan. He challenged the traffic stop that led to my arrest and found inconsistencies in the officer's report. Because of Mike's thorough approach, I kept my nursing license. He literally saved my career!"

"I talked to like five lawyers before picking Mike. What I liked was how straight-up he was - no empty promises, just told me where I stood and how we'd tackle it. He was super easy to reach whenever I had questions and always kept me in the loop. His experience with DuPage County courts really made a difference in my case."

"Got arrested for a DUI on my way home from a company happy hour. Worst night ever! My buddy recommended Mike, and man, am I glad he did. Mike noticed the police never read me my rights properly and used that to get my case totally dismissed. He knows all the ins and outs of Illinois DUI law and doesn't miss a thing."

"As a truck driver, I would've lost everything with a DUI on my record. Mike got that right away and came up with a game plan just for my CDL situation. He challenged why I was even pulled over in the first place and got the key evidence tossed out. Saved my whole career. Any driver needs this guy in their corner!"

"When I said no to the breathalyzer, I didn't realize I'd lose my license for a whole year. Mike explained everything without the legal mumbo-jumbo and fought hard for me. He actually found mistakes in the police paperwork and my case got thrown out! If you refused a test like I did, Mike knows exactly how to handle it. Highly recommend."

"Lorem ipsum dolor sit amet, consectetur adipiscing elit. Suspendisse varius enim in eros elementum tristique."

Name Surname

Position, Company name

PRactice Areas

Complete DUI Defense in DuPage County

From first-time offenses to serious felony charges, our DUI defense attorneys fight to protect your rights and future throughout DuPage County.

Learn More →

First Offense DUI

We fight Class A misdemeanor DUI charges for first-time offenders, aiming for court supervision to keep your record clean and protect your driving privileges.

Aggravated DUI

We offer expert defense for Class 2-4 felony DUIs, like repeat offenses, crashes causing injury or death, or driving without a license, to reduce jail time, fines, or license loss.

High BAC DUI

We fight DUI charges with BAC of 0.16 or higher, challenging breath, blood, or urine test accuracy to avoid harsher fines, jail, or suspensions.

Drugged Driving (DUID)

We challenge DUI charges involving marijuana, prescription drugs, or illegal substances, using science to question field sobriety and chemical tests.

Commercial Driver DUI

We protect CDL holders from career-ending DUI charges with a 0.04 BAC limit, defending strict Illinois commercial rules, on or off duty.

DUI with Child Passenger

We defend DUI charges with kids under 16, from misdemeanors to Class 2 felonies for repeat cases or injuries, to minimize jail, fines, or license suspension.

DUI Test Refusal

We defend DUI charges where you refused breath, blood, or urine tests, fighting longer license suspensions and building strong defenses for your case.

License Reinstatement

Comprehensive representation through the Secretary of State hearing process to restore driving privileges after DUI suspensions and revocations in Illinois.

Why McMahon?

Expert DUI Defense in DuPage County

Arrested for DUI in DuPage County? Former prosecutor, Mike McMahon, and former judge, Cary B. Pierce, use their experience to build strong defenses that protect your license, freedom, and future.

Learn More →

Former Judge & Prosecutor

We understand DUI cases from all sides. Our legal team knows exactly how the DuPage County court system works. We give you a powerful advantage in your defense.

24/7 Help with Affordable Payment Plans

We're available day or night for emergency bail hearings after a DUI arrest. Our payment plans make quality legal help affordable for everyone in DuPage County.
‍

Proven Track Record

We've helped hundreds of clients throughout DuPage County get charges reduced or dismissed, keep their licenses, and avoid jail time after DUI arrests.

Our Process

Getting DUI Defense Is Simple

Facing DUI charges in DuPage County? Taking action to protect your rights is easy.

Free Consultation

Call us or fill out our online form for a free, confidential evaluation of your DUI case. We'll explain your options and answer all your questions with no obligation.

Case Review

We'll examine your arrest details, police reports, and testing procedures to find problems with the prosecution's evidence and build your defense strategy.

Strong Defense

We'll fight for you in court, at DMV hearings, and with prosecutors to get the best possible outcome for your specific DUI case in DuPage County.

Insights

DUI Defense Information Center

Stay informed about Illinois DUI laws and defense strategies that could help your case in DuPage County.

See all insights →

3/6/2025

This is a big ol test

jhellepkfpowefwefwrgergetrg

29/5/2025

The Critical 46-Day DUI Countdown That Can Make or Break Your Case

Most people arrested for DUI in DuPage County focus on their court date months away, completely unaware that their most important deadline expires in just 46 days.

29/5/2025

5 Steps to Protect Yourself After a First-Time DUI Charge in Illinois.

How to navigate the legal system, understand your rights, and work toward the best possible outcome for your case. April 5, 2025

FAQs

DUI Defense FAQs

Get answers to common questions about DUI charges in DuPage County

What should I do right after a DUI arrest?

Stay silent and ask for a lawyer right away. Do not answer questions. Do not do any roadside test. And do not make any statements without your lawyer present. Try to remember everything about the traffic stop and write it down later.

Will I lose my license after a DUI in Illinois?

Yes, most people lose their license 46 days after arrest. First-time offenders usually get a 6-month suspension if they failed tests or 12 months if they refused testing. We can fight this suspension with the right paperwork.

What's the difference between suspension and revocation?

A suspension has an end date when you get your license back automatically. A revocation has no end date - you must apply to get your license back after waiting a certain time period.

Can I get court supervision for a first DUI in DuPage County?

Yes, first-time offenders with no serious factors can often get court supervision. This keeps the DUI off your public driving record if you follow all the rules. You usually can't get supervision for second or later DUIs.

When is a DUI a felony in Illinois?

A DUI becomes a felony when it's your third offense, causes serious injury, happens while driving on a suspended license, involves children under 16 who get hurt, happens while driving a school bus, or causes death.

How much does a DUI lawyer cost in Oak Brook?

Costs depend on how complex your case is, but we offer payment plans to help. Getting a good lawyer often saves you money in the long run by helping you avoid the worst penalties.

Get Experienced DUI Defense

Our team is available 24/7 to discuss your DuPage County DUI case. Contact us any way that works for you.

Call: 630-953-4400
‍Email: info@mcmahonlegal.net
‍‍Visit: 2150 McDonald Drive, Oak Brook, IL 60523

Thank you! Your submission has been received!

Oops! Something went wrong while submitting the form.

DuPage County

DUI Defense Attorneys