Patrick Weiland
Managing Partner · Criminal Defense
Pat Weiland defends people facing DUI, drug, and felony charges across DuPage and the Chicago suburbs — a former DuPage County prosecutor who tried thousands of cases and supervised the felony trial division.
20
YEARS PRACTICING
1000s
CASES TRIED
4+ ⭐
ON GOOGLE, AVVO AND MORE
5
COUNTIED SERVED
Pat Weiland is a criminal defense attorney and Managing Partner at Dolci Weiland & Sendlak in Oakbrook Terrace, Illinois. He defends clients against DUI, drug, white-collar, and violent-crime charges throughout DuPage, Will, Kane, Kendall, and Cook counties.
Before defending the accused, Pat spent nearly ten years prosecuting them. At the DuPage County State’s Attorney’s Office he handled more than 10,000 DUI cases as a misdemeanor prosecutor, then spent six years trying felonies — complex white-collar matters and violent crimes up to first-degree murder — eventually supervising the felony trial division. He knows how the State investigates, charges, and tries a case, and he uses that insight to find the weaknesses in the case against you.
How Patrick helps Illinois residents
First-time, repeat, underage, cannabis, and felony DUI — the area Pat knows better than almost anyone.
Possession, intent to deliver, manufacturing, and paraphernalia charges.
Assault, battery, aggravated and firearm charges through serious felonies.
Embezzlement, identity theft, money laundering, and financial-crime defense.
Sexual assault, abuse, child porn, prostitution and failure to report child abuse.
Domestic battery, aggravated domestic battery, and order-of-protection matters.
Traffic tickets, reckless driving, license suspensions and more.
Reckless homicide, DUI homicide, and the most serious charges, tried by a former felony supervisor.
Background & experience
2005 – 2010 · Village of Downers Grove
Municipal prosecutor
Served as a prosecutor for Downers Grove and was appointed a Special Assistant State’s Attorney by the DuPage County State’s Attorney.
DuPage County State’s Attorney’s Office · ~10 years
Misdemeanor & felony prosecutor
Prosecuted more than 10,000 DUI cases as a misdemeanor ASA, then spent six years on felonies — felony DUI, complex white-collar crime, and violent crimes including armed robbery, aggravated criminal sexual assault, and first-degree murder.
DuPage County · Leadership
Supervisor, felony trial division
Rose to supervise the felony trial division with attorneys reporting to him, taught at the Suburban Law Enforcement Academy, and founded the county’s Financial Identity Theft Task Force.
Present
Criminal defense & Managing Partner
Now brings a decade of prosecutorial insight to the defense table, leading the firm as Managing Partner.
Recent results, settlements or verdicts
DUI
Reduced to reckless driving
Negotiated a first-offense DUI down to a lesser charge, protecting the client’s license and record.
DRUG POSSESSION
Felony charge dismissed
Challenged an unlawful search; the controlled-substance evidence was suppressed and the case dismissed.
DOMESTIC BATTERY
Not guilty at trial
Secured an acquittal after taking a contested domestic battery case to trial.
WHITE COLLAR
Charges resolved pre-trial
Resolved a financial-crime allegation favorably before it ever reached a jury.
* Results described are illustrative of matters the firm handles. Prior results do not guarantee a similar outcome in any future case.
What my clients say
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.
Pat helped my brother, and now he’s helped me with my case at a reasonable price.
I highly recommend him.
Zosia
Criminal Defense
Mr weiland helped me out with a serious criminal charge in Dupage county. He clearly knew everybody in the courthouse including the judge! The case was reduced to a misdemeanor and I could not be more pleased. When other lawyers said it couldn’t be done, Patrick weiland got it done. Thank you, sir!!
Anonymous
Criminal Defense
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.
Kyle
DUI
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. After listening to the facts of my case, he assured me that I would not only survive the process, but, that in all likelihood, I would never have a DUI on my record. 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.
Anonymous
DUI
Education & credentials
ADMISSIONS
- Admitted to the Illinois Bar
- U.S. District Court, Northern District of Illinois
- Former Supervisor, Felony Trial Division, DuPage County
- Special Assistant State’s Attorney, Downers Grove (2005–2010)
🛡️In good standing · No public disciplinary history with the ARDC
EDUCATION
- J.D. — Chicago-Kent College of Law, Illinois Institute of Technology
- B.A. — University of Wisconsin–Stevens Point
AWARDS & RECOGNITION
★ Top 100 Trial Lawyers ★ National Advocates ★ Lead Counsel Rated ★ Avvo Clients’ Choice
In the profession
🏛️
Memberships
- Illinois State Bar Association
- DuPage County Bar Association
- National College for DUI Defense
🎓
Speaking & writing
- Instructor, Suburban Law Enforcement Academy
- Founder, DuPage Financial Identity Theft Task Force
- Supervisor, felony trial division (DuPage County)
📁
Trial experience
- 10,000+ DUI cases prosecuted
- Thousands of felonies tried over six years
- Violent crime through first-degree murder
Insights by Patrick Weiland
Driver’s License and Illinois DUI
January 30, 2026
The state of Illinois has no tolerance for driving under the influence and imposes severe punishments on anyone who is caught doing so. If you are facing a charge of DUI, the team of criminal defense attorneys at Dolci Weiland & Sendlak are dedicated to providing quality representation and working with individuals who face a
Domestic Violence and Divorce
January 30, 2026
Criminal law and family law are both distinct and intricate practice areas on their own. In the few scenarios where these legal areas intersect, complex issues for legal professionals and the parties involved are likely to arise. Divorce can be a triggering event for domestic violence. When they go hand in hand (and they often do), certain
Disclosing Location of a Domestic Violence Victim
January 30, 2026
Accusations of domestic violence are not taken lightly in the state of Illinois. They’re treated so seriously that there have been a number of community-based programs and organizations established in the state for the sole purpose of serving people who have been victimized. When mitigating these situations, privacy is a major component of keeping victims
Illinois DUI Secretary of State Hearings
January 30, 2026
A DUI conviction can be devastating all by itself. The consequences are severe: a criminal conviction, large amounts of court-ordered counseling, staggering fines and costs, and, in some cases, jail time. However, when the dust from the court proceedings finally settles, the biggest consequence of that DUI conviction comes in your mailbox – a letter
Talk to Patrick Weiland today
Whether you’re facing a DUI, a drug charge, or a serious felony, the first conversation is free — and the sooner you call, the more Pat can do to protect you.
Or call us directly: (630) 261-9098