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Rathburn Law Office, P.C. Rathburn Law Office, P.C.
Available 24/7, Call Us: (463) 465-2401

Extreme DUI Lawyer in Indianapolis 

Precision DUI Representation Across Central Indiana

An extreme DUI arrest can feel devastating. When law enforcement alleges a very high blood alcohol concentration, the penalties escalate quickly, and the stakes become even higher. 

Indiana treats these cases aggressively, often pursuing enhanced penalties that threaten driving privileges, employment, and personal freedom. Rathburn Law Office, P.C. represents drivers throughout Indianapolis and Central Indiana who are facing serious OWI allegations involving elevated alcohol levels and complex chemical evidence.

Request a free initial virtual consultation with our Indianapolis extreme DUI attorney at (463) 465-2401 or by submitting our online contact form. Available 24/7.

Defending Indiana Drivers Against Extreme DUI Charges

Harsher assumptions about impairment and risk often accompany an extreme DUI allegation. You may face immediate license consequences, increased bond conditions, and a greater likelihood of jail exposure. For many people, these charges place careers, professional licenses, and family responsibilities at risk.

In addition to criminal penalties, drivers may experience:

  • Extended license suspensions
  • Mandatory alcohol-related programs
  • Increased insurance costs
  • Damage to reputation and future opportunities

Because these cases rely heavily on chemical testing and procedural compliance, mistakes in handling them can lead to long-term consequences that could have been challenged.

Our Approach to Extreme DUI Defense

Our firm approaches extreme DUI cases with a disciplined, technical defense strategy focused on the evidence. Elevated BAC allegations are only as reliable as the testing methods and procedures used to obtain them. We scrutinize every stage of the case, including the traffic stop, arrest decision, breath or blood testing, and post-arrest handling.

Attorney Chuck Rathburn’s extensive training in breath testing systems, standardized field sobriety testing, and alcohol-related evidence allows our firm to identify weaknesses that may not be apparent in routine DUI cases. 

We examine whether testing devices were properly maintained, whether samples were collected and analyzed correctly, and whether law enforcement followed required protocols.

When appropriate, our firm pursues suppression of evidence, reduction of charges, or alternative resolutions designed to limit long-term harm. Protecting driving privileges and minimizing disruption to your life remain central priorities.

What Is an Extreme DUI in Indiana?

Indiana law does not formally use the term “extreme DUI,” but the concept applies to OWI cases involving very high blood alcohol concentrations, typically 0.15% or higher. At this level, prosecutors often seek enhanced penalties, arguing that the danger and impairment are increased.

These cases may also involve additional allegations, such as reckless driving or endangerment, which further increase potential exposure. 

Penalties for Extreme DUI / High BAC OWI

Potential penalties for an OWI involving a high BAC may include:

  • Longer license suspension periods
  • Increased fines and court costs
  • Mandatory alcohol education or treatment
  • Probation
  • Possible jail time

Penalties can increase significantly if the offense involves an accident, injury, prior OWI convictions, or a commercial driver’s license. Each case turns on specific facts, making early legal intervention critical.

Trusted by Our Clients

    Call Chuck!
    “I am always impressed by his knowledge and understanding and ability to think outside of the box.”
    - Mary M.
    Call Chuck!
    "Chuck’s knowledge and understanding of breath alcohol instruments is exceptional. He worked closely with a manufacturer for many years learning and sharing the knowledge with the defense community. I have gone to Chuck on many occasions to discuss breath alcohol issues and aspects of how the instrumentation deals with the sampling and analysis. I consider him one of the leading experts on breath alcohol within the defense community. As an attorney, Chuck works hard for his clients and doesn’t just deal cases away. He takes the cases personal and fights to get the best resolution possible. In my 30 some years as an expert in breath alcohol testing, Chuck Rathburn is, by far, one of my favorite attorneys for consulting and brainstorming ways to expose the pseudoscience and bad science in the alcohol testing community. I am always impressed by his knowledge and understanding and ability to think outside of the box. I do not hesitate to say Call Chuck!"
    - Mary M.
    Worked Hard to Help
    “Chuck was able to get the DUI dismissed to a lesser charge.”
    - John K.
    Worked Hard to Help
    "My first attorney told me I had to plead guilty to DUI because they didn't think I had a defense. Chuck was able to get the DUI dismissed to a lesser charge. He worked hard to help me."
    - John K.
    Outstanding Job
    “When looking for DataMaster training for my staff, I looked no further than Charles Rathburn.”
    - Jon S.
    Outstanding Job
    "When looking for DataMaster training for my staff, I looked no further than Charles Rathburn. Mr. Rathburn did an outstanding job educating my entire staff on the concepts of breath alcohol testing while thoroughly explaining the problems associated with breath alcohol testing."
    - Jon S.
    Intense Passion
    “I have taken several DataMaster Courses with Chuck and continue to be blown away by both his command of that instrument and his ability to teach it to others.”
    - Eric G.
    Intense Passion
    "I have taken several DataMaster Courses with Chuck and continue to be blown away by both his command of that instrument and his ability to teach it to others. Chuck has an intense passion for learning about this machine, and has a gift of how to present it in a format that is easy to digest and understand."
    - Eric G.
    Key to Success
    “Understanding the DataMaster better than the DA's and better than may of the State's experts has helped me get some fantastic results.”
    - Mark R.
    Key to Success
    "The in-depth DataMaster training I received from Chuck Rathburn has been a key to success in court. After taking the hands on breath test training from Chuck I am better able to analyze DUI breath cases from the inside out. Understanding the DataMaster better than the DA's and better than may of the State's experts has helped me get some fantastic results."
    - Mark R.