Patrick WeilandDUI and Criminal DefenseCall now(630) 261-9098

Former Prosecutor, Current Defense Attorney

About Patrick Weiland

I became a prosecutor in 1997, the year I was admitted to the Illinois Bar. I spent the next eight years with the DuPage County State’s Attorney’s Office, first in the misdemeanor, traffic and DUI courtrooms and then in the felony trial division, which I went on to supervise. From 2005 to 2010 I was the Village of Downers Grove’s prosecutor, appointed a Special Assistant State’s Attorney by the DuPage County State’s Attorney. Over those 13 years I handled more than 10,000 DUI cases and took hundreds of cases to verdict.

Today I’m the managing partner for criminal defense at Dolci Weiland & Sendlak. I defend people charged with DUI, misdemeanors and felonies in DuPage, Kane, Will, Kendall and Cook counties. Alex Sendlak and I have worked together since 2015, and we were friends for several years before that. I’ve been practicing law since 1997, and the first part of that career shapes almost everything about how I handle the second.

Career at a Glance

  1. 1997 to 1999

    Assistant State's Attorney

    DuPage County misdemeanor, traffic and DUI courtrooms, as the office's lead misdemeanor DUI prosecutor.

  2. 1999 to 2004

    Felony Trial Division

    Murder cases, aggravated DUI cases involving multiple deaths, and major insurance fraud and theft cases. The office's only prosecutor handling child pornography cases, and its liaison to the law enforcement task forces on them.

  3. 2004 to 2005

    Felony Trial Division Supervisor

    Supervised the division and was assigned to a capital murder case.

  4. 2005 to 2010

    Downers Grove Village Prosecutor

    Appointed a Special Assistant State's Attorney by the DuPage County State's Attorney.

  5. 2011 to 2025

    Founding Partner, Dolci & Weiland

  6. Since December 2025

    Managing Partner, Dolci Weiland & Sendlak

    Criminal defense in DuPage, Kane, Will, Kendall and Cook counties.

  • Police Academy Instructor

    Taught prospective officers DUI arrests and procedures at the Suburban Law Enforcement Academy from 1999 to 2001.

  • DUI Death Seminars

    Led seminars for law enforcement on collecting and preserving evidence in DUI cases involving deaths.

  • Identity Theft Task Force

    Founded the county's Financial Identity Theft Task Force.

  • Federal Liaison

    Served as the State's Attorney's Office liaison to the U.S. Attorney's Office for the Northern District of Illinois.

In Downers Grove, I appeared in the police department’s DUI training video, which became its standard for DUI stops and arrests, and I helped rewrite the village’s DUI prosecution policy manual.

What Changed When I Switched Sides

As a prosecutor, my job was to read a police report and decide what the State could prove. I made charging decisions, chose which cases to try and which to reduce, and prepared witnesses for trial. Later I supervised the felony trial division.

Teaching DUI arrests at the Suburban Law Enforcement Academy gave me a second view of the same process. I saw how officers are trained to conduct a stop, write a report and testify about what they observed.

On the defense side, I use the same habits for a different purpose. I read the report the way I used to, looking for what the State has to prove and where the proof is thin. I compare the report with the video, the lab work and the paperwork, line by line. I prepare each case from the start as if it’s going to trial, because that’s how you find out what a fair resolution looks like.

The biggest change is who I’m talking to. A prosecutor works with officers, victims and the file. Now I sit across the table from the person whose name is on the charge, usually during one of the worst weeks they’ve had, and my first job is to explain clearly what’s happening and what their options are.

What a First Meeting With Me Looks Like

We start with your paperwork and the next date on it, because that date sets the pace for everything else. Then I ask you to tell me what happened in your own words, without worrying about what sounds good or bad. I’ll want to know what matters most to you outside the courtroom, such as your job, your driver’s license, a professional license, your immigration status or your family.

From there, I explain the charge in plain terms: what the State has to prove, the range of possible outcomes and what usually comes next in that courtroom. I tell you which records I plan to request, such as the police report, squad and body camera video and any test results. My goal is for you to leave knowing the realistic options and what decision, if any, is yours to make first.

Where I Practice and What I Handle

I handle cases at the DuPage County Courthouse and Administration Building in Wheaton and in the courts of Kane, Will, Kendall and Cook counties. They include:

  • DUI, from first offenses to felony aggravated DUI
  • Drug charges
  • White-collar cases
  • Violent crimes, up to homicide
  • Misdemeanors such as domestic battery, retail theft and driving on a suspended license

Memberships

  • Illinois State Bar Association
  • DuPage County Bar Association

Education and Admissions

  • J.D., Chicago-Kent College of Law, Illinois Institute of Technology, 1997
  • B.A., University of Wisconsin-Stevens Point, 1994
  • Admitted to the Illinois Bar, 1997

I’m in good standing with the Attorney Registration and Disciplinary Commission, with no public disciplinary history.

Reviews

What People Wrote About Pat

I was in need of some serious legal assistance recently. It really was not looking good for me. Pat Weiland is the best. He personally advocated for me to the state and I got my best possible outcome. I honestly can say Pat is a friend now. He turned a terrible situation around completely.

RossCriminal defense, review on Google

Pat Weiland is probably one of the nicest most knowledgeable and helpful Lawyers servicing DuPage county…. I have had my fair share of run in with Law Enforcement and just got my case resolved. Thank you sir!

Kevin K.Criminal defense, review on Google

Pat helped my brother, and now he’s helped me with my case at a reasonable price. I highly recommend him.

ZosiaCriminal defense, review on Google

Reviews That Describe Case Results

These reviews describe individual clients' own cases. Every case is decided on its own facts, and prior results do not guarantee a similar outcome.

I couldn’t be more grateful to Pat for helping me through my DUI case. From the very beginning, he was honest, responsive, and genuinely cared about the outcome. He walked me through every step, answered all my questions, and got my case dismissed! … I highly recommend him.

Daniel M.DUI, review on Google

Una firma de abogados sería, honesta,profesional, me sentí muy seguro de que me ayudarían en mi caso de DUI, en el cual lucharon por mi inocencia y el resultado fue excelente. No salí culpable veredicto final del Juez, NOT GUILTY, (no culpable) gracias Dolci/Weiland.

Our English translation: A serious, honest, professional law firm. I felt very confident that they would help me with my DUI case, in which they fought for my innocence, and the result was excellent. I was not found guilty. The judge's final verdict: NOT GUILTY. Thank you, Dolci/Weiland.

César L.DUI, review on Google

My DUI caused me tremendous worry and anxiety. Finding the right lawyer was stressful. I was lucky to select Dolci & Weiland as my law firm. Mr. Weiland made me feel extremely comfortable with his knowledge of the DUI process and what I could expect in court. … Within just a few court dates, I was thrilled when he told me that my case had been dismissed. I would 100% recommend Dolci & Weiland for your DuPage DUI case.

AnonymousDUI, review on Avvo

I hired Patrick and Dominick in September 2013 after a second DUI charge. I thought my life was over, Dupage county and Lombard didn’t really have their stuff together and they found holes in the arrest in the night in question. After a year in a half of continuances Patrick and Dominick got the case dismissed. But Dupage decided to re-file and charge with the 6 charges again. This took another 6 months almost 2 years of dealing with this. July 17, 2015 the bench trial finally comes I get my date in court again. Dominick just torn apart the arresting officer and made her, the Lombard police department, and DuPage look dumb is putting it nicely. On the grounds of independent recall a term used to dismiss my case and no conviction and no re-filing or recharging me ever. Walked out with tears of happiness and joy. Thank you Patrick and Dominick anybody that has a DUI hire this two it was money well spent.

KyleSecond DUI, review on Avvo
4.8 on Google, 67 reviews for Dolci Weiland & Sendlak

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