William L. Vig

William L. Vig

VIG LAW, P.C.

1100 South 5th St.
Springfield, IL 62703

Phone: 217-241-5628

Website: vig-law.com

General Member

About William L. Vig

I grew up in Menard County, Illinois, attending Petersburg PORTA schools and graduating from PORTA High School. I then attended Western Illinois University in Macomb, Illinois, where I graduated magna cum laude with a double major in communication and political science, and minors in music and pre-law. After college, I went on to earn both my Juris Doctor (law degree) and a Master of Arts in Speech Communication from the University of Illinois at Urbana-Champaign. I began by legal career as an Assistant State’s Attorney in Sangamon County, Illinois, where I tried numerous felony and misdemeanor cases to juries. I started in the Traffic and Misdemeanor Division, prosecuting petty traffic tickets and misdemeanor criminal offenses. I was then named chief DUI prosecutor, and was later promoted to the Felony Division and soon became one of the office’s two felony narcotics prosecutors. Over the course of my six years as an Assistant State’s Attorney, I was assigned cases ranging from petty speeding to first degree murder, covering the full breadth of the criminal and traffic codes. I was responsible for the prosecution of nearly 700 felony cases, over 4000 DUI citations, and countless other crimes and offenses. Since entering private practice, I have advised and represented clients in a wide variety of legal matters, while focusing primarily in the areas of DUI and criminal defense. I have prided myself on my ability to answer questions both thoroughly and promptly, negotiate effectively with opposing parties, and—in those instances where negotiations fail—obtain a favorable result through trial. If you’re in the market for a diligent, experienced attorney who knows the law, can analyze your case and explain your options, and has proven success both in and out of the courtroom, I’d be honored to speak with you.


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NCDD members have access to a comprehensive forensic library that provides invaluable information to be used when defending clients charged with DUI.

This library includes scientific articles on drug and alcohol intoxication, toxicology and pharmacology, methods of testing for blood alcohol content, field sobriety testing, potential errors that may occur during testing, accident reconstruction, expert testimony, and evidentiary rules. This valuable information can ensure that you provide a high quality defense to clients charged with DUI based on the circumstances of their case and the laws in their state.

FROM OUR BLOG

Keeping FSTs Out of a Trial

04/23/2025

Written by Neil Halttunen I want to address a common issue that DWI practitioners are facing, trying to keep FSTs out of a trial. One way is to take the position that FSTs are scientific evidence and make the prosecutor lay scientific foundation which they rarely can do. The HGN test was the result of several studies. See Generally Session 8 of...

Ethics Task Force Blog

04/15/2025

Written by Jonathan Dichter The Heart of Client Care: Moving Beyond Case Management In the legal profession, we often talk about "case management" - the systems and processes that keep our cases moving efficiently. But what about *client care*? True client care goes beyond deadlines and filings; it's about treating clients as *people*-scared, uncertain, and in need of guidance. And when done...

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