
At Pioneer Criminal Defense, our Iowa based firm works hard to protect the rights, freedoms and futures of our clients.
If you have been charged with an OWI/DUI or have been accused of a crime, contact us today.
Attorney Cory Thein has 20 years of experience and has successfully handled over a thousand cases due to his exceptional
trial skills.


Dubuque Criminal Defense Attorney
Aggressive, Experienced & Strategic Representation
If you are facing a law enforcement investigation into criminal activity or have been arrested for a crime, you are likely in a state of understandable stress. Your future and the future of those who depend on you may be at risk. Under these trying circumstances, it is paramount that you exercise the rights granted you under the Constitution. You have the right to an attorney and to a fair and speedy trial. Your right to an attorney at this early stage is vital. What you say and do can have a negative impact on your case when you don’t understand criminal law and how law enforcement will work against you in pursuit of charges. Furthermore, an attorney may be able to intervene early with knowledge and understanding that can lead to no charges being filed in the first place.
The above are just two scenarios of how the advocacy of a strong and proven defender can benefit you from the inception of your case throughout all stages to its resolution. At Pioneer Criminal Defense, you can work with a highly-experienced and aggressive Dubuque criminal defense and OWI lawyer whose only goal is to help you obtain the best possible case result based on the facts and circumstances of your situation. That may sound simple but it is a premise based on hard work, dedication, extensive knowledge of the criminal justice system, and strong negotiation and courtroom skills. Those are qualities you will find in abundance at our firm where no case is too big or too small to take on.
Contact Pioneer Criminal Defense online or call (563) 447-9148 to request a consultation with our attorney.
Find Your Way
Why People Choose to Work With Us
High-Quality Legal Work That Blends Expertise With Enthusiasm-
OWI/DUI Experience
OWI is a complex offense. Attorney Cory Thein has unprecedented expertise in this matter.
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One-Time Flat Fee
At Pioneer Criminal Defense, we offer clients a one-time $1,750 flat fee for OWIs and Certain Criminal Defense Cases. Call our firm today to learn more.
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Aggressive Reputation
At Pioneer Criminal Defense, we don’t back down from a challenge. We fight to ensure that the rights of our clients' are protected.
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Great Reputation
As a local Iowa native, Attorney Cory Thein was able to create great working relationships within the legal field.
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Unparalleled Experience
Attorney Cory Thein has 20 Years of experience. He has successfully handled thousands of cases and several jury trials.
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Exceptional Service
Committed to providing the utmost in service, advocating for our client’s rights, and achieving the best for each and every client.

Cases We Handle
No Case Is Too Big or Too Small
Proven Results
Thousands of Cases Successfully Handled-
16 Criminal Offenses Charges Reduced
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Assault Aquitted
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Felony Terrorism No Jail Time
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Burglary Dismissed
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Assault/Strangulation Aquitted
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Sexual Abuse Aquitted
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Embezzlement Charges Dismissed


The Stories That Matter Most
Read Our Recent Reviews-
“I, fortunately, had the opportunity to meet Cory after I had dismissed my previous attorney. Quickly he took charge and made me feel secure and comfortable in the situation that I was in.”
- Former Client -
“He doesn't treat you like "just another client". You can tell he genuinely cares about you from the first phone call.”
- Justin