OWI Defense Lawyers in Wisconsin

Defending individuals charged with OWI and related impaired driving offenses throughout Wisconsin.

Operating While Intoxicated (OWI) in Wisconsin is not a single offense, but a category of impaired driving charges that can escalate quickly based on a person’s prior history, the type of impairment alleged, and the circumstances of the stop. OWI cases may involve alcohol, drugs, or a combination of both, and charges are often filed alongside related allegations arising from the same incident.

Wisconsin treats OWI cases with heightened scrutiny, and early charging decisions can significantly affect a person’s legal exposure. While some OWI cases are civil in nature, others carry criminal penalties, and repeat offenses can result in felony charges. Importantly, an arrest does not automatically result in a conviction, and many OWI cases turn on whether law enforcement and the State complied with constitutional and evidentiary requirements.

Because OWI cases often involve complex investigative issues and multiple legal tracks, early involvement by an experienced defense attorney is critical. Prompt legal guidance can help protect constitutional rights, identify weaknesses in the State’s evidence, and shape how the case proceeds from the outset.

The attorneys at Chirafisi Anderson, S.C. have extensive experience defending individuals charged with OWI and related impaired driving offenses in Wisconsin courts. Our practice focuses on identifying unlawful stops, challenging the reliability of field sobriety and chemical testing, and scrutinizing whether law enforcement and the State have met their legal and constitutional obligations. We approach OWI cases with a litigation mindset, recognizing that early investigation and strategic motion practice often determine the outcome.

Types of OWI Charges in Wisconsin

Wisconsin law recognizes multiple OWI-related charges, each governed by different legal standards and potential consequences. While these charges often arise from the same traffic stop or arrest, they are legally distinct and must be evaluated separately.

Core OWI Offenses

Related OWI Allegations

OWI Involving Injury or Death

Additional information about each offense is available on the individual pages linked above.

How OWI Cases Are Commonly Prosecuted in Wisconsin

OWI cases in Wisconsin typically begin with a traffic stop followed by an investigation into whether a driver was impaired. Law enforcement may rely on observations, field sobriety testing, and chemical testing to determine whether charges are warranted. Charging decisions are often made early and may involve multiple OWI-related allegations arising from the same incident.

In addition to the criminal case, OWI arrests frequently trigger separate administrative proceedings that operate on strict deadlines and independent legal standards. These parallel processes can affect driving privileges and other rights regardless of how the criminal case ultimately resolves. Early procedural decisions can therefore have significant consequences.

Because OWI prosecutions often hinge on the legality of the stop, the conduct of the investigation, and the reliability of testing, early involvement by an experienced defense attorney is critical. Prompt legal representation can help protect constitutional rights, challenge improper evidence, and ensure that the State’s case is thoroughly examined rather than assumed.

OWI-Related Legal and Administrative Issues

An OWI arrest often raises immediate questions beyond the criminal charge itself. Depending on the circumstances, individuals may be dealing with separate administrative proceedings, driving restrictions, or strategic defense considerations that operate on strict timelines.

OWI Defense

Administrative Issues

Why Hiring an OWI Defense Lawyer Matters

OWI charges can carry serious legal and practical consequences, particularly when charging decisions escalate based on prior history or testing allegations. Early decisions made by law enforcement and prosecutors often shape the scope of the case, making experienced legal representation critical from the outset.

OWI cases frequently turn on technical and constitutional issues, including the legality of the traffic stop, the conduct of the investigation, and the reliability of testing. The attorneys at Chirafisi Anderson, S.C. understand how OWI cases are investigated and prosecuted in Wisconsin courts and how early missteps can dramatically affect outcomes. Our approach emphasizes careful case analysis, strategic motion practice, and disciplined advocacy.

Experience That Matters

We have extensive experience defending individuals charged with OWI and related impaired driving offenses throughout Wisconsin. These cases often involve contested stops, suppression issues, chemical testing challenges, and evolving charging theories that require focused and knowledgeable defense.

Proven Results in Serious OWI Cases

Our practice is built on defending high-stakes criminal matters where outcomes are often determined early. We prepare OWI cases to be litigated when necessary, recognizing that strategic preparation and a willingness to challenge the State’s evidence can significantly influence case resolution.

Strategic, Early Intervention

OWI investigations often begin before all facts are fully developed. We focus on early case assessment, preservation of evidence, and identifying weaknesses in the State’s case at the earliest opportunity. By engaging early and strategically, we work to protect our clients’ rights and position cases for the best possible outcome.



Representative Results in OWI Cases

  • OWI 3rd / PAC .127 – Columbia County (August 2025)

    Result: Not Guilty on All Counts
  • OWI 1st / PAC .086 – Marathon County (August 2025)

    Result: Amended to Reckless Driving
  • 3rd Offense OWI – Columbia County (August 2025)

    Result: All Evidence Suppressed, Case Dismissed
  • OWI 1st / PAC 1st – Sauk County (June 2025)

    Result: Not Guilty on All Counts
  • 2nd Offense OWI – Rock County (April 2025)

    Result: Evidence Suppressed
  • OWI 1st / PAC .286 – Columbia County (March 2025)

    Result: All Evidence Suppressed

View additional OWI defense case results →


Client Testimonials


  • Avvo
    Laura

    Professional and Courteous

    David Anderson took my case that was initially an OWI, he worked diligently with me and the district attorney to be certain that my license was not suspended, and that my charges were lessened to reckless driving. He consistently answer my calls, and all of my questions. I would highly recommend David Anderson Law office!

  • Google
    James S.
    After speaking with a few attorneys and not feeling comfortable with them and what they were telling me I luckily came across the Chirafisi team and after one call I knew I found a winner. Corey and his staff handled my case perfect and after he studied the circumstances he found a way to get in and challenge the case, and won! I owe my current life and well being to this group and I highly recommend Corey Charifisi and his group!

View more of what our clients say→

Talk to a Wisconsin OWI Defense Lawyer

An OWI arrest can have immediate and lasting consequences, even before a case is resolved in court. If you are under investigation or have been charged, speaking with an experienced defense attorney early can help protect your rights and ensure the State’s case is carefully examined.

The attorneys at Chirafisi Anderson, S.C. provide confidential consultations for individuals facing OWI and related impaired driving charges in Wisconsin. We are prepared to evaluate the circumstances of your case, explain your options, and guide you through the legal process with clarity and discretion.

Frequently Asked Questions About OWI Charges in Wisconsin

Operating While Intoxicated (OWI) in Wisconsin refers to impaired driving allegations involving alcohol, drugs, or a combination of both. OWI is a category of offenses that includes multiple charges depending on the circumstances and a person’s prior history.

No. Some OWI cases are civil forfeitures, while others are charged as criminal misdemeanors or felonies. The classification depends on factors such as prior OWI convictions and the nature of the alleged conduct.

Often, yes. An OWI arrest may trigger separate administrative or licensing consequences that proceed independently from the criminal case. These issues can arise early and operate on strict timelines.

Early legal representation can help protect constitutional rights, evaluate the legality of the stop and investigation, and address charging decisions before they escalate. Early intervention often shapes the direction and outcome of an OWI case.