Skip to main content

Daniel Joseph Koewler

DUI and DWI Attorney at Roseville, MN

5.0   1 review
  • Licensed for 15 years
    State MN
    Acquired 2008
    Authorized to Practice No misconduct found

We have not found any instances of professional misconduct for this lawyer.

About Daniel

Learn Daniel’s areas of practice.

Practice areas
  1. DUI and DWI
    Defend clients charged with all types of DUI/DWI offenses, from felony criminal vehicular operation to misdemeanor first-time offenses, with an emphasis on scientific challenges to the state's evidence. Extensive experience with clients who have commercial drivers licenses or where the collateral consequences of a DWI are extraordinary.

  2. Appeals
    Defend clients on criminal and criminally-related civil appeals, particularly DWI appeals, before Minnesota's Appellate Courts. Also regular author of amicus curiae briefs (friend of the Court) before the Minnesota Supreme Court.

  3. Criminal defense
    Defend clients charged with criminal offenses ranging from first degree murder, assault, and white collar crimes, with additional work on expunging previous convictions. Experienced in trial work in both State and Federal Court, as well as in Minnesota's Appellate Courts.

  • I fight DWI cases - it's what I do - and that fight always includes every available defense - scientific challenges to the test results, constitutional challenges to how the officer handled your arrest, and factual challenges to the state's evidence. If you want to fight, call me. 
  • Dan Koewler is licensed to practice law by not only the United States Supreme Court, but also the Supreme Court of the State of Minnesota and the Minnesota Federal Court system.  Dan represents Minnesota clients against both a broad array of criminal charges and after-the-fact assistance with expungements.

  • He is a member of several organizations dedicated to criminal defense, including the Minnesota Association of Criminal Defense Lawyers (MACDL) the National College of DUI Defense (NCDD) and is a founding member of the DUI Defense Lawyers Associataion (DUIDLA). He is the acting Secretary for the exclusive, invite-only Minnesota Society for Criminal Justice (MSCJ) and is on the Executive Council for the Criminal Law section of the Minnesota State Bar Association.

  • In his years of practice, Dan has developed extensive experience in contested criminal matters, ranging from 8 week-long first degree murder trials that involve extensive expert testimony regarding DNA, to day-long contested hearings challenging the scientific basis for DWI tests. Alongside his work in local district courts, Dan also regularly represents clients before the Minnesota Court of Appeals on either criminal appeals or Implied Consent civil appeals.

  • In 2010 Dan was selected by Minnesota Lawyer as one of only 25 “Up and Coming Attorneys” by Minnesota was actively involved in the work of not only the Source Code Coalition, but also acted as an attorney for the plaintiff-intervenors in the Federal Court settlement that ultimately resulted in the disclosure of the source code to the now-retired Intoxilyzer 5000EN. When he’s not in court, Dan teaches other defense attorneys on the art of DWI defense, including his recurring Webcast on the “Chemical Testing” chapter of Minnesota’s “DWI Deskbook” (he also authored several chapters in that publication).

  • In 2014 and 2015 Dan was selected to Super Lawyer's list of "Rising Stars" a distinction reserved for 2.5% of attorneys practicing in his field. Dan regularly blogs on criminal defense issues - primarily DWI issues – on the award winning “Minnesota DWI Defense Blog.” In addition to teaching duties, he also provides pro bono work for non-profit organizations that deal with criminal law issues; he was the sole author of the amicus curiae brief filed on behalf of the Minnesota Society for Criminal Justice in the Minnesota Supreme Court case of Patino v. One 2007 Chevrolet and again in the Minnesota Supreme Court case of Axelberg v. Comm’r of Pub. Safety. He is the author of the amicus curiae brief in the recent Minnesota Supreme Court Case of State v. Bernard.

Contact Daniel

Ramsay Law Office
2780 Snelling Av N #330
Roseville, MN, 55113-7125


5.0 / 5.0
  1 customer review
5 Star
4 Star
3 Star
2 Star
1 Star
Posted by anonymous | March 31, 2016
This review is from a person who hired this attorney.
| Hired Attorney
the best ever
Really a great attorney. Listened. Heard me. Researched. Presented. Respectful through all of it. Kind. Considerate. Very knowledgeable of the legalities and laws pertaining to my case. Worked for me and I always felt like it was teamwork both with Daniel and the staff at Ramsey. I would recommend him in a heartbeat.


  • Free Consultation 90 minutes
Payment methods
Cash, Check, Credit Card


AVVO RATING 10.0 (Superb)

Work Experience

  • Attorney
  • Ramsay Law Firm, P.L.L.C.
  • 2008 - Present


  • University of Minnesota Law School
  • JD - Juris Doctor
  • 2007
  • University of St. Thomas
  • BA - Bachelor of Arts
  • 2001

Legal Cases

  • Bernard v. Minnesota (14-1470)
  • Pending
  • State of Minnesota et al., v. CMI of Kentucky, Inc.
  • Favorable settlement reached, while preventing an unfavorable one.
  • Westlund v. Comm'r of Pub. Safety
  • Judge threw out urine test results: case was won
View all legal cases


  • Minnesota Society for Criminal Justice
  • Secretary
  • 2014 - Present
  • DUI Defense Lawyers Association
  • Founding Member
  • 2014 - Present
  • Minnesota Association for Criminal Defense Lawyers
  • Chairman - Amicus Committee
  • 2012 - Present
  • Minnesota State Bar Association Criminal Law Section
  • Executive Council
  • 2008 - Present
  • National Association of Criminal Defense Lawyers
  • 2008 - Present
View all associations

Languages Spoken

  • English

Honors and Awards

  • Rising Star
  • Super Lawyers
  • 2015
  • Rising Star
  • Super Lawyers
  • 2014
  • Up & Coming Attorney, 2010
  • Minnesota Lawyer
  • 2010


  • Understanding DUI Scientific Evidence, 2014 ed.: Leading Lawyers and Scientists on Recent Developments in Forensic Science, Understanding Chemical and Field Sobriety Testing Procedures, and Analyzing the Validity of Test Results
  • The Problem With The Measurand
  • 2015
  • Minnesota Lawyer
  • Green and Dumb: How to Succeed As a New Attorney
  • 2010
View all publications

Speaking Engagements

  • 50th Annual Criminal Justice Institute
  • Uncertainty of Measurement: Bringing Hard Science Into Minnesota's DWI Test Reporting Process - Tracking Down The Known Unknowns
  • 2015
  • 50th Annual Criminal Justice Institute
  • Custodial DWI Searches and the Nature of Consent
  • 2015

Attorney endorsements

Received (3)
Given (0)
Endorse Daniel
Criminal defense Attorney | May 30
Relationship: Fellow lawyer in community
"I endorse Daniel. He is a highly skilled attorney that is well respected in the legal community."
DUI and DWI Attorney | Oct 18
Relationship: Fellow lawyer in community
"I endorse this lawyer."
Criminal defense Attorney | Sep 24
Relationship: Fellow lawyer in community
"I endorse this lawyer's work. He has been one of the quickest studies since joining the bar, getting up to speed on extremely complex issues, with competence and a wonderful presentation style of his own. A true rising star!"
This attorney hasn't created any attorney endorsements recently on Avvo.

Avvo Contributions

This attorney hasn't created any legal answers in Q&A or legal guides recently on Avvo.

Roseville DUI and DWI Lawyer Daniel Joseph Koewler
Daniel Joseph Koewler
DUI and DWI Attorney
Roseville, MN
Licensed for 15 years
Free Consultation