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Daniel Joseph Koewler

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About me

  • 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 Lawyer.Dan 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.


Practice areas


  1. DUI & DWI: 70%
  2. Appeals: 20%
  3. Criminal Defense: 10%



Free consultation (90 minutes)

Payment types:

Cash, Check, Credit card

Attorney endorsements

3 total 

Are you an attorney? Endorse this lawyer

  • Michael S. Waddington

    I endorse Daniel. He is a highly skilled attorney that is well respected in the legal community.


    Michael Waddington Military Law Attorney
    Relationship: Fellow lawyer in community

  • Samuel John Edmunds

    I endorse this lawyer.


    Samuel Edmunds DUI & DWI Attorney
    Relationship: Fellow lawyer in community

Contact info

Ramsay Law Office

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


MNAuthorized to practice200807/31/2015
We have not found any instances of professional misconduct for this lawyer.
Avvo contributions
Legal answers
Award nameGrantorDate granted
Rising StarSuper Lawyers2015
Rising StarSuper Lawyers2014
Up & Coming Attorney, 2010Minnesota Lawyer2010
Work experience
TitleCompany nameDuration
AttorneyRamsay Law Firm, P.L.L.C.2008 - Present
Association namePosition nameDuration
Minnesota Society for Criminal JusticeSecretary2014 - Present
DUI Defense Lawyers AssociationFounding Member2014 - Present
Minnesota Association for Criminal Defense LawyersChairman - Amicus Committee2012 - Present
Minnesota State Bar Association Criminal Law SectionExecutive Council2008 - Present
National Association of Criminal Defense LawyersN/A2008 - Present
Legal cases
Case nameOutcome
Westlund v. Comm'r of Pub. SafetyJudge threw out urine test results: case was won
Carroll v. Comm'r of Pub. SafetyJudge threw out urine test results: case was won
State of Minnesota et al., v. CMI of Kentucky, Inc.Favorable settlement reached, while preventing an unfavorable one.
See all legal cases 
Publication nameTitleDate
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 ResultsGarbage In, Garbage Out: The Lingering Presence of Urine Alcohol Testing2014
Minnesota DWI HandbookChemical Testing2014
Minnesota LawyerGreen and Dumb: How to Succeed As a New Attorney2010
School nameMajorDegreeGraduated
University of Minnesota Law SchoolLawJD - Juris Doctor2007
University of St. ThomasPolitical ScienceBA - Bachelor of Arts2001
Speaking engagements
Conference nameTitleDate
50th Annual Criminal Justice InstituteCustodial DWI Searches and the Nature of Consent2015
50th Annual Criminal Justice InstituteUncertainty of Measurement: Bringing Hard Science Into Minnesota's DWI Test Reporting Process - Tracking Down The Known Unknowns2015
Minnesota CLE WebcastThe New World of Suppressing Coerced Blood Alcohol Tests2014