Germantown, Wisconsin DUI & OWI Defense

Germantown DUI & OWIDefense Lawyer

A DUI or OWI allegation in Germantown can affect driving privileges, employment, insurance, professional licensing, and personal reputation.

Schedule a Consultation Call Us Now

Protecting Drivers in Germantown

Defense Built Around the Stop, Tests, and Evidence

A Germantown DUI or OWI case may involve the traffic stop, roadside observations, field sobriety testing, squad video, statements, breath or blood evidence, an alleged refusal, and time-sensitive license proceedings.

Nathan J. Dineen reviews police procedure, testing, laboratory records, video, witness accounts, prior-offense allegations, and court deadlines. The objective may be suppression, dismissal, charge reduction, a negotiated resolution, or trial preparation, depending on the evidence and the client’s goals.

Evidence ReviewConstitutional IssuesNegotiationTrial Preparation

Important DUI & OWI Deadlines

Administrative-review and refusal deadlines may arise quickly. Prompt review helps preserve available defenses and driving-privilege options.

DUI & OWI Issues Reviewed in Germantown

Traffic Stop

The officer must have a lawful basis to stop the vehicle and to extend the encounter into a DUI or OWI investigation.

Learn More →

Field Sobriety Tests

Instructions, road conditions, lighting, footwear, physical limitations, officer training, and scoring may affect the reliability of roadside tests.

Learn More →

Breath & Blood Evidence

Calibration, maintenance, collection, chain of custody, laboratory procedure, contamination, and interpretation should be carefully reviewed.

Learn More →

Refusal Hearings

An alleged refusal can create separate court and license consequences. Notice and hearing deadlines may arise quickly.

Learn More →

License Consequences

Administrative suspension, revocation, occupational-license eligibility, and ignition-interlock requirements depend on the specific allegation and history.

Learn More →

Prior OWI & Penalties

Prior-offense counting can significantly affect exposure. The validity and use of prior convictions may require separate review.

Learn More →

Why Choose Nathan J. Dineen

Focused DUI and OWI Defense

Nathan J. Dineen brings professional recognition, technical training, scientific evidence analysis, responsive communication, and flexible payment options to Wisconsin impaired-driving matters.

2026 Super Lawyer and 11x Super Lawyers designation
Forensic Lawyer-Scientist training and scientific evidence review
National Trial Lawyers recognition
Experience with traffic stops, field tests, breath tests, blood tests, and refusal matters
Responsive communication when your case needs attention

Germantown DUI & OWI FAQs

Common Questions

Every answer depends on the charge, evidence, court, prior record, and applicable deadlines.

The process may include a citation or criminal charge, court dates, administrative license action, and separate refusal proceedings. Deadlines should be reviewed immediately.

Yes. The officer must have a lawful reason for the stop and a sufficient basis to extend the detention into an impaired-driving investigation.

Yes. Administration, conditions, calibration, collection, chain of custody, laboratory method, and interpretation may all be relevant.

Consequences depend on the alleged offense, chemical-test result, refusal allegation, prior history, and applicable administrative deadlines.

Office & Directions