PLEASE NOTE: To protect your safety in response to the threats of COVID-19, we are offering our clients the ability to meet with us in person, via telephone or through video conferencing. Please call our office to discuss your options.


John R. Kopp is a former prosecutor who offers individualized attention and takes a personalized approach to each of his clients to provide the best in criminal, traffic, and DUI defense.

Defense Icon
Get A Strong Defense

Let a former prosecutor defend you against drug, assault, domestic battery or other charges.

Traffic icon
Challenge Your Traffic Ticket

Don’t let a traffic ticket lead to higher insurance rate or driver’s license suspension.

DUI Icon
Defeat Your DUI

Just because you failed a sobriety test doesn’t mean the state can convict you.

Personalized And Aggressive Criminal Defense

Many criminal defense lawyers have large caseloads and spend a minimal amount of time on each one. Not us. We know that getting the best results for you means putting in the time and effort to understand you, your concerns and the unique facts of your case. We are committed to giving you personalized attention every step of the way.

We love what we do, and it shows in the attention we give to each case and the details we are able to pull out to build effective defenses on behalf of people in difficult situations. Our Illinois criminal defense law practice is focused on helping you protect your future, whether you face a traffic violation, DUI or another criminal charge. We can also help you reinstate your driver’s license, expunge your criminal record or fight accusations of a probation violation.

Located in Geneva, we defend people charged with misdemeanors and felonies throughout Kane County and surrounding counties throughout Northern Illinois.

photo of attorney


Having A Former Prosecutor On Your Side Can Make A Difference

Before establishing his own practice, John R. Kopp worked as a prosecutor for the Cook County State’s Attorney’s Office, where he handled numerous criminal issues ranging from traffic offenses to first-degree murder.

Many of his cases involved preparing police officers for their testimony at trial. Through that process in hundreds of trials, Mr. Kopp gained a thorough grasp of police investigations, warrant executions and arrest procedures. He can use that knowledge to effectively evaluate how the prosecution will approach your case and develop a strong defense for you.

Mr. Kopp knows courtroom procedure. He’s built relationships with prosecutors to understand their approach to their cases. And he knows criminal law. Don’t trust your case to a less-experienced lawyer.


Schedule A Free Consultation At Your Convenience

You shouldn’t go into the courtroom alone. You should have a knowledgeable attorney with you who will offer you the best defense to protect you and your rights.

Call our Geneva office at 630-448-2777 or send us an email to schedule a free consultation. With flexible appointments and meeting spaces in Chicago and its western, northern and southern suburbs, we’ll make it easy for you.

Please include your name and the best telephone number where you may be reached, and Mr. Kopp will return your call as soon as possible. Your privacy is very important to us, so we do not recommend providing a work phone number to return your call.