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Illinois DUI Field Sobriety Test Defense Attorney

DuPage County Lawyer Defends DUI Clients with Failed Field Sobriety Test Results

When you live in Illinois, you can expect to be arrested and prosecuted vigorously if you are charged with driving while under the influence of some impairing substance (DUI). The State is among the leaders in strict DUI laws and enforcement. When an officer stops you on suspicion of DUI, you may be asked to submit to field sobriety tests or a blood alcohol test (BAC) as a means of police verifying your level of impairment. You can choose to take the tests, or refuse them. If you are arrested, whether you have taken or refused to take the field sobriety tests, you will need immediate and experienced DUI legal representation to protect your freedom and driving privileges. The law office of Kathryn L. Harry & Associates, P.C. has successfully defended DUI charges and challenged field society testing for clients throughout Northwest Chicago.

Defending DUI Field Sobriety Tests in Northwest Illinois

If you are driving in a manner that causes a police officer to pull you over on suspicion of DUI, you may be asked to exit your vehicle and perform one or more field sobriety tests, usually the Standardized Field Sobriety Tests (SFST). Officer may use some other non-standard field sobriety tests as well as the BAC test. Aimed at giving the officer more information about your physical and mental ability to drive safely, the results of these tests can be used as evidence against you in your DUI case. Among the tests you may be given are:

  • Illinois Standardized Field Sobriety Tests
  • Walk and Turn
  • One Leg Stand
  • Horizontal Gaze Nystagmus (HGN) eye test
  • Portable Breath Test

The law office of Kathryn L. Harry & Associates, P.C. has attorneys specially trained in DUI field sobriety testing and we know how to defend against it in your case. Poor administration, misrepresented results, matters of absorption and body weight, drug interactions, test equipment defects, faulty calibration, and scientific validity, all impact the results of sobriety testing.

There are time constraints on filing an appeal of your driver’s license suspension or revocation in your DUI arrest. Contact our skilled DUI defense attorneys right away for a free initial consultation to discuss your case and preserve your driving privileges. We are affordable and accessible and confident we can resolve your DUI case in a favorable manner. We have three convenient offices in the Chicago area and serve DuPage, Cook, Will, and Kane counties.
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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.


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  • Main Office:
    1200 Harger Rd., Suite 706, Oak Brook, IL 60523
    (630) 472-9700
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