• White Collar Crime
  • Traffic Violations
  • Drug Crimes
  • Expungements
  • Violent Crimes
  • Sex Crimes
  • DUI

Illinois DUI Defense Attorney

DuPage County Affordable DUI Lawyer

The State of Illinois is among the most aggressive in passing and enforcing laws aimed at curbing the growing number of injuries and deaths caused by motorists driving under the influence of alcohol (DUI). If you are arrested on DUI, you will need immediate and experienced legal representation. When your life and your freedom is threatened by the severe penalties of a DUI conviction, you can count on the attorneys in the law office of Kathryn L. Harry & Associates, P.C. to protect your rights. Throughout Northwest Chicago, we have successfully defended clients charged with DUI and a full range of traffic violations, including felonies, misdemeanors, first-time and repeat offenses.

Defending DUI Traffic Violations in Illinois

Driving behind the wheel while under the influence, whether DUI alcohol, DUI drugs, or DUI prescription drugs, you are subject to laws and penalties in Illinois that are quite severe. When you are stopped on suspicion of DUI, the officer who stops you may state the reason for the stop, ask some questions, then ask you to step out of the car to perform a field sobriety test and a blood alcohol test (BAC). You take the test and fail, or you decide to refuse to take the sobriety test or refuse a blood, alcohol, or urine test. You find yourself arrested on DUI charges.

In your DUI arrest, you were unaware of your rights and obligations, your legal protections, or the appropriate course of action to take. There are many aspects of your DUI arrest and charge that can impact your case; a long list of factors that can be offered in your defense against DUI charges, including questioning the:

  • Legality of the stop
  • Reliability of the field sobriety test
  • Inaccuracy and mechanical failure of the breathalyzer machine
  • Licensure and training of the Breathalyzer operator
  • Inaccuracy of blood tests
  • Evidence of police dashboard and police station videotapes
  • Testimony of experts in the field
  • Road and weather driving conditions
  • Inaccuracies and inconsistencies of police statements and reports
  • Witness testimonies
  • Impact of prescribed medications
  • Impact of health and medical conditions
  • Timeline for filing the case and bringing a charge to trial

These are matters in DUI cases that our defense attorneys will investigate and utilize to your defense advantage. We will challenge every aspect of the State's actions and charges to help you avoid the severe penalties of a DUI conviction. At Kathryn L. Harry & Associates, P.C., you will benefit from attorneys trained in the same Standardized Field Sobriety Testing as the police and decades of successful DUI case resolutions for clients facing a variety of DUI charges, including:

  • DUI drugs
  • DUI prescription drugs
  • DUI resulting in death
  • DUI resulting in serious bodily injury
  • DUI with injury/accident
  • DUI field sobriety tests
  • Repeat and felony DUI
  • DUI Commercial driver's license (CDL)

Our attorneys can help you understand the charges, penalties, and defenses for the DUI charges you face. Contact us for a free initial consultation right away so that we can protect your rights and move to get your charges dismissed or reduced, and your record expunged, when eligible. We have three convenient offices, serving the Chicago area including DuPage, Cook, Will, and Kane counties.

The National Trial Lawyers
Super Lawyers
Newsweek Showcase
10.0 Avvo Rating

Practice Areas

A Different Kind of Law Firm:

  • Know the TRUTH:  You will discuss the nature of the charges filed (or about to be filed) against you with an attorney who speaks plainly and does not use legal-ease.
  • Realize more OPTIONS:  We work for you as a team to defend your rights.  Our ability to see all sides of an issue is not an accident.
  • Budget your MONEY: Legal fees are always discussed upfront so there are no surprises.
  • Expand the POSSIBILITIES:  You will receive an honest opinion as to what we think are the available defenses at a trial, what plea bargains are likely to be offered, and what is likely to happen in the event of conviction.
  • Enjoy the CONVENIENCE: You may have a free initial consultation over the phone or in our office.


  • DCBA
  • ISBA
  • Kathryn L. Harry & Associates, P.C. BBB Business Review
  • Avvo Rated Lawyer
  • Main Office:
    1200 Harger Rd., Suite 706, Oak Brook, IL 60523
    (630) 472-9700
  • Visa, Mastercard, Discover and PayPal Accepted

    Se Habla Español


Contact us today

Call (630) 472-9700 or fill out the form below. We will be in touch promptly.