Kevin's firm handled setting up my will and trust recently. They took something that seemed intimidating and made it easy to understand. I've also referred a couple clients to Kevin - he's trustworthy, approachable and very fairly priced.
"I've used Kevin and his firm's services since 2011. He gave undivided attention to my cases, advised me on different options and..."
"Kevin was extremely professional, responsive and knowledgeable when I came to him for help. I would definitely recommend O'Flaherty Law!"
Choosing the right law firm can change everything. At O’Flaherty Law, we pride ourselves on transparency, responsiveness, and personalized care. See how we compare to the industry standard.
Our Naperville criminal and drug offense attorneys know that you need the best representation possible to defend your rights and maintain your freedom when you're charged with a drug offense or DUI. We will be your aggressive advocate during your matter and help you achieve the best possible outcome.
Please contact our friendly lawyers to Schedule a Consultation.
The purpose of a consultation is to determine whether our firm is a good fit for your legal needs. Although we often discuss expected results and costs, our attorneys do not give legal advice unless and until you choose to retain us.
Schedule a ConsultationLearn More About The Firm1515 Legacy Cir., Ste. 1A
Naperville, IL 60563
I am personally committed to ensuring that each one of our clients receives the highest level of client service from our team. Our mission is to provide excellent legal work in a cost-effective manner while maintaining open lines of communication between our clients and their attorneys. Many of our clients are going through difficult times in their lives when they reach out to us. They should feel comfortable leaning on the experience and knowledge of our attorneys as their counselors and advocates. We are here to help!

In this article, our Naperville drug offense attorneys explain your rights if you are pulled over on suspicion of a DUI. We further discuss what you should and should NOT say to an officer. We also explain the process for filing a Petition for Hearing. If you fail to file a Petition for Hearing within 90 days of your arrest, your right to a hearing will be waived.
Read more about what to do if you're pulled over for a DUI from our Naperville DUI attorneys.
In this article, our Naperville DUI attorneys explain when and how blood tests can be used as evidenced in a DUI case.
Hospitals typically perform blood plasma tests and using a drawn blood sample after the solid cellular components have been separated. A legal blood test, however, is performed on whole blood. Drivers typically should not consent to a breathalyzer or field sobriety test when pulled over or arrested on suspicion of a DUI and also can refuse a blood test.
Read more about the use of blood tests from our Naperville DUI attorneys.
Our Naperville drug crime attorneys want you to better understand how a DUI becomes an aggravated DUI under Illinois law. In this article, we explain the state's DUI law so you can better know your rights when fighting your DUI case.
When faced with a DUI, there are important points you need to know.
Read more about the about DUI laws from our Naperville drug offense attorneys.
Drug offense penalties in Illinois vary significantly based on the substance, quantity, and whether the charge is possession, delivery, or trafficking. Under the Illinois Controlled Substances Act, possession of small amounts of a Schedule I or II substance (such as heroin or cocaine) can be charged as a Class 4 felony, carrying 1–3 years in prison. Larger quantities or delivery charges escalate to Class 1 or Class X felonies with sentences of 6–30 years. Cannabis was legalized in Illinois in 2020 for adults 21 and older, but possession above legal limits or delivery without a license still carries criminal penalties. If you have prior cannabis convictions that fall within the legalization framework, you may be eligible for expungement.
It depends on the outcome of your case. In Illinois, arrests that did not result in conviction, charges that were dismissed, and cases where you were acquitted are generally eligible for expungement — meaning the record is destroyed. Convictions for certain low-level offenses may be eligible for sealing, which hides the record from most public searches but does not destroy it. Cannabis convictions from before legalization in 2020 may also qualify for automatic expungement or pardon under state law depending on the amount involved. An attorney can review your specific record to determine what relief is available and file the appropriate petition. Learn more from our Naperville expungement attorneys.
Effective drug defense strategies depend on the specific facts of your case, but common defenses include: unlawful search and seizure — if law enforcement violated your Fourth Amendment rights during the stop, search, or arrest, evidence may be suppressed; lack of knowing possession — the prosecution must prove you knew the substance was present and that it was a controlled substance; chain of custody issues — if evidence was improperly handled or tested; and entrapment — if government agents induced you to commit a crime you otherwise would not have. Drug cases are highly fact-sensitive, and early intervention by a criminal defense attorney often produces the best outcomes, including diversion programs or reduced charges. Contact our Naperville drug offense attorneys for a case evaluation.