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A Minnesota DWI charge can be contested, but no defense works automatically. An attorney must compare the evidence with the charged offense, assess any constitutional issues, and explain the possible outcomes. A dismissal, acquittal, or negotiated reduction depends on the facts; none is guaranteed.
What must the prosecution prove?
Minnesota uses DWI, or driving while impaired. Under section 169A.20, charges can involve driving, operating, or physical control, together with a specified impairment or concentration condition. The statute includes alcohol impairment, a concentration of 0.08 or more at the time or measured within two hours, and separate drug-related provisions.
The presence-based drug provision is limited to specified Schedule I or II substances or metabolites and excludes the listed cannabis-related substances. Cannabis impairment is separately prohibited. A prescription may support a statutory defense to the presence-based charge under section 169A.46; it does not automatically excuse impaired driving.
What issues can a DWI attorney investigate?
The stop and arrest
An investigatory detention generally requires reasonable, articulable suspicion; that is different from probable cause for an arrest. The timing and scope of police actions matter. State v. Hunter discusses the reasonable-suspicion standard. An attorney can compare the police report with recordings and determine whether a suppression motion has support. Excluding some evidence does not necessarily end every charge.
Statements and Miranda warnings
Miranda concerns custodial interrogation, not every question at a traffic stop. In Berkemer v. McCarty, the U.S. Supreme Court distinguished ordinary roadside questioning from custodial interrogation. Missing required warnings may affect the use of statements; they do not automatically erase an arrest or all other evidence.
Test procedures and evidence
Ask counsel to review the actual test records, timestamps, operator documentation, recordings, and any relevant laboratory materials. Describe medical conditions, medications, injuries, or difficulty following instructions accurately. A diagnosis, diet, or allegation of equipment error alone does not establish that a result is invalid. Whether expert analysis is useful depends on the evidence.
Does a rising alcohol level defeat the charge?
Not automatically. Minnesota’s concentration offense expressly includes a measurement of 0.08 or more within two hours of driving, operating, or physical control. An argument about a lower level while driving must account for that language.
Alcohol consumed after the alleged violation is a different issue. Section 169A.46, subdivision 1, sets a specific affirmative defense for sufficient post-violation consumption and requires notice to the prosecution before the omnibus or pretrial hearing. Give counsel a truthful, detailed timeline; do not assume ordinary absorption is the same defense.
Can refusing a test create another charge?
Yes. Section 169A.20, subdivision 2, covers refusal of qualifying breath testing and blood or urine testing required by a search warrant. Test type and legal authority matter. Have the request, advisory, warrant if any, and license notice reviewed promptly rather than relying on general online advice about refusal.
Is a first DWI always a misdemeanor?
No. Fourth-degree DWI is a misdemeanor, but third-degree DWI is a gross misdemeanor and includes an impairment violation with one aggravating factor or a qualifying refusal violation. The exact degree and consequences require review of the complaint and record.
Is careless driving a noncriminal reduction?
No. Minnesota section 169.13, subdivision 2, makes careless driving a misdemeanor. A proposed plea must be evaluated on its actual terms and consequences, not described as automatically clearing your record.
What should you bring to a consultation?
- The citation or complaint and court dates.
- Release conditions and any license or vehicle notices.
- Test paperwork and a timeline of driving, police contact, and testing.
- Witness information, receipts, messages, and recordings you already have.
- Relevant medical or prescription information for confidential discussion with counsel.
The criminal case and license review require separate attention. Section 169A.53 provides a judicial-review process for qualifying revocations. Do not wait for the criminal case to end before asking about a license deadline.
Talk with Martine Law
Your first conversation may be with a Director of Client Engagement (non-attorney), who helps with intake and scheduling and does not provide legal advice. Tell the team about upcoming court dates and notice deadlines. An attorney can assess the evidence and your options.
Schedule a free consultation to discuss your Minnesota DWI case.
This page states Minnesota law and is for general information, not legal advice.
For an overview of the law and how we help, see our Minnesota DWI defense page.
