You are not required to answer potentially incriminating questions. Politely say, “I would like to speak with an attorney before I answer any questions.” This is an appropriate reply, although you are not entitled to counsel during a roadside stop unless you are in custody and questioned. Saying that you had one or two beers is not incriminating, is not sufficient to cause intoxication, and may explain the odor of alcohol on the breath.
What is the standard field sobriety test in Wisconsin?
In Wisconsin, law enforcement officers utilize a series of standardized field sobriety tests (FSTs) during traffic stops to assess a driver's level of impairment. These tests are designed to evaluate a person's balance, coordination, and ability to follow instructions. The primary standardized FSTs include:
1. Horizontal Gaze Nystagmus (HGN) Test
This test involves an officer observing the driver's eyes as they follow a moving object, such as a pen or flashlight, horizontally. The officer looks for involuntary jerking movements of the eyes, known as nystagmus, which can be more pronounced when a person is under the influence of alcohol. It's important to note that while alcohol consumption can cause nystagmus, other factors may also contribute to this eye movement.
2. Walk-and-Turn (WAT) Test
In this test, the driver is instructed to take nine heel-to-toe steps along a straight line, turn on one foot, and return in the same manner. The officer observes for signs such as inability to maintain balance during instructions, starting before the instructions are finished, stopping while walking, missing heel-to-toe steps, stepping off the line, using arms for balance, making an improper turn, or taking an incorrect number of steps. These indicators may suggest impairment.
3. One-Leg Stand (OLS) Test
The driver is asked to stand with one foot approximately six inches off the ground and count aloud starting from one thousand (e.g., "one thousand one, one thousand two") until told to put the foot down. During this time, the officer looks for signs of swaying while balancing, using arms to maintain balance, hopping to maintain balance, or putting the foot down prematurely. These behaviors can indicate potential impairment.
Legal Rights Concerning Field Sobriety Tests in Wisconsin
In Wisconsin, drivers are not legally obligated to participate in field sobriety tests. Politely declining to perform these tests is within your rights. However, it's important to understand that refusal may lead to arrest based on the officer's observations and other evidence. Notably, refusing the tests means you are not providing potentially subjective evidence that could be used against you in court.
For commercial driver's license (CDL) holders, the regulations differ. Individuals with a CDL are required to submit to field sobriety tests when requested by law enforcement, even when operating a non-commercial vehicle. Refusal in such cases can lead to disqualification of commercial driving privileges and other penalties.
Understanding these tests and your rights can help you make informed decisions if you are stopped on suspicion of impaired driving in Wisconsin.
Get a Free Legal Consultation
If you’re facing an OWI charge, a knowledgeable attorney can help explore potential defenses. For a no-cost, 10-minute consultation with Madison-based OWI attorney Patrick Stangl, contact Stangl Law Offices to discuss your case and options for achieving the best possible outcome.
Madison OWI Attorney Patrick J. Stangl, is committed to exploring options for your best defense and has defended clients across the state since 1991. To this end, he is pleased to offer a FREE 10-minute consultation at no obligation to discuss the specifics of your case and take the first step in putting this stressful time behind you.
Being charged with a crime in Wisconsin can be an intimidating, scary, and ultimately life-changing event. If you hire Attorney Stangl to defend your criminal case, he can:
- Review the case for defects
- Potentially move for the suppression of evidence
- Compel the discovery of evidence to support your innocence
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Real Case Success: Attorney Stangl’s Consecutive OWI Victories
Attorney Patrick Stangl recently achieved three consecutive OWI dismissals in a single month by effectively challenging probable cause and procedural missteps in each case. For instance, in one case, he successfully argued against a prior conviction that had not honored his client’s right to counsel. In another, he demonstrated that the arresting officer lacked sufficient reason for the arrest, leading the court to dismiss the charges.

Attorney Patrick Stangl
Nationally recognized for excellence, Wisconsin Criminal Defense Attorney Patrick J. Stangl has been practicing law in the Badger State since 1991. While his expertise spans the breadth of criminal law, Attorney Stangl is well-known for his impressive record as a Wisconsin OWI attorney, defending all types of drunk driving and driving under the influence charges such as OWI, DUI, DWI, BAC, PAC, and more.