OWI / DUI Defense

Can the Police Legally Lie to You During a Wisconsin OWI Stop?

If an officer tells you the roadside breath test is required, that things will go easier if you just take it, or that they already know what your number is going to be, none of those statements has to be true. Police are allowed to use deception during an investigation, and courts have declined to throw out statements for that reason alone.

That is the hook. Here is the part that is actually worth memorizing, because in Wisconsin it decides more cases than the lie does:

  1. Field sobriety tests are voluntary. No statute compels them.
  2. The roadside breath test is a screening device under Wis. Stat. § 343.303. Its result cannot be used to prove impairment, and the statute imposes no penalty for declining it.
  3. The test after arrest is a different test. That is the evidentiary test under Wis. Stat. § 343.305, offered after the Informing the Accused form is read to you, and refusing that one triggers an automatic revocation.
  4. Almost everyone confuses 2 and 3. They look alike, they happen an hour apart, and they are not the same decision.

We are Cafferty, Scheidegger & Johnson, S.C., a criminal defense firm at 840 Lake Avenue in Racine with a second office at 7001 30th Avenue in Kenosha, and we have defended OWI cases in these counties since 1994. The phone is answered around the clock at (262) 632-5000 and the first conversation costs nothing. Nothing below is legal advice about your case; it is the law we would explain to you on that call.

What “police can legally lie” actually means

The rule is federal, not Wisconsin. It comes from Frazier v. Cupp, 394 U.S. 731 (1969), where officers falsely told a suspect that a companion had already confessed. The U.S. Supreme Court called the misrepresentation “relevant” but held it was, in its words, “insufficient in our view to make this otherwise voluntary confession inadmissible.” Voluntariness is judged on the totality of the circumstances, and Wisconsin courts apply that same framework.

So an officer may tell you a witness said something, may describe a test as standard procedure, and may suggest that cooperating now will be better for you later. None of that is a promise, and none of it has to be accurate.

Two honest qualifications, because the internet version of this fact is usually overstated:

The practical version: what the officer tells you at the roadside is not legal advice about your rights, and it is not a neutral summary of Wisconsin law. It is part of an investigation.

The three roadside requests, and which ones you can decline

A Wisconsin OWI stop asks you for three separate things, usually in this order. People experience them as one continuous event. Legally they are not.

Field sobriety testsPreliminary breath test (PBT)Evidentiary chemical test
WhenRoadside, before arrestRoadside, before arrestAfter arrest, at the station, jail or hospital
StatuteNo compelling statuteWis. Stat. § 343.303Wis. Stat. § 343.305
What it is forBuilding probable causeScreening, to decide whether to arrestProving the case
Result admissible to prove impairment?Officer testifies to what he observedNo. Probable cause onlyYes
Penalty for decliningNone automaticNone. Wis. Stat. § 939.61(1) does not applyRevocation of 12, 24 or 36 months under Wis. Stat. § 343.305(10). Listed as a prior in Wis. Stat. § 343.307(1)(f), but State v. Forrett, 2022 WI 37, bars counting a stand-alone warrantless-blood-refusal revocation to increase a later criminal penalty

The statute is unusually blunt about the middle column. Wis. Stat. § 343.303 provides that the result of a preliminary screening test “shall not be admissible in any action or proceeding except to show probable cause for an arrest, if the arrest is challenged, or to prove that a chemical test was properly required or requested,” and that the general penalty provision under Wis. Stat. § 939.61(1) “does not apply to a refusal to take a preliminary screening test.”

Since 2025 Wisconsin Act 99, the same statute also covers the roadside oral-fluid swab. Act 99 added saliva testing to Wis. Stat. § 343.303, not to the implied consent statute, which is why declining the swab carries no implied consent revocation either. Our roadside saliva test page works through what that law did and did not change.

None of this means declining is automatically the right move. Declining the field sobriety tests and the PBT tends to lead to an arrest on whatever the officer has already observed, and then to the test that does count. The point is that you should know which decision you are making. A driver who blows into the handheld device because they were told they had to has given up a screening result they were never obliged to provide.

The one refusal that has a price

The evidentiary test is the one with consequences, and Wisconsin’s implied consent law makes those consequences automatic rather than discretionary.

Refusing after a lawful arrest triggers revocation under Wis. Stat. § 343.305(10): 12 months for a first refusal, 24 for a second, 36 for a third or subsequent. Wis. Stat. § 343.307(1)(f) lists that revocation as a counted prior, subject to State v. Forrett, 2022 WI 37, which held the counting scheme unconstitutional “to the extent that they count prior revocations resulting solely from a person’s refusal to submit to a warrantless blood draw as offenses for the purpose of increasing the criminal penalty.” Forrett is blood only and does not reach breath refusals, which is how people end up facing a criminal second offense without ever having been convicted of a first.

You get 10 days from the date on the Notice of Intent to Revoke to demand a refusal hearing under Wis. Stat. § 343.305(9). That hearing is narrow. Under Wis. Stat. § 343.305(9)(a)5 it asks three questions and only three: whether the officer had probable cause, whether the Informing the Accused was read correctly, and whether you actually refused. Whether you were impaired is not on the table.

The second of those three questions is where the theme of this post lands somewhere useful. If the warnings you were read were garbled, incomplete or oversupplied with information that was not in the form, that is a live issue at the refusal hearing, and it is litigated on the squad video and the recording, not on anyone’s memory. Our refusal hearing page covers the mechanics, and the first 30 days post covers how the 10-day windows interact with the court date.

Why you cannot just call us from the roadside

This is the question we get most often, and the honest answer is not the comfortable one.

The Wisconsin Supreme Court held in State v. Neitzel, 95 Wis. 2d 191, 289 N.W.2d 828 (1980), that Wisconsin’s implied consent statute “makes no provision for a right to counsel,” and that a driver “who conditions submission to a chemical test upon the ability to confer with an attorney ‘refuses’ to take the test.” Ask for counsel and then decline to blow, and that can be the refusal itself, with the full revocation and the prior-offense consequence attached. The court confirmed in State v. Reitter, 227 Wis. 2d 213, 595 N.W.2d 646 (1999), a case that came up out of Racine County, that where a driver exhibits no confusion, the officer is under no affirmative duty to advise that the right to counsel does not attach here. An officer’s only duty, the court held, is to read the “Informing the Accused” form.

That is a real asymmetry, and pretending otherwise would be dishonest. What it means practically is that the phone call that matters happens after, not during, and that it should happen quickly, because both 10-day clocks start running from the paperwork in your hand rather than from your first court date. Our post on the Tony Romo stop in Milwaukee County walks through the same issue with body-cam footage attached.

Miranda is not the shield people think it is

Two common beliefs, both wrong.

“They never read me my rights, so the case gets thrown out.” Miranda attaches to custodial interrogation. Wisconsin courts apply the federal standard from Berkemer v. McCarty, 468 U.S. 420, 440 (1984): the safeguards attach once a suspect’s freedom of action is curtailed to a degree associated with formal arrest. An ordinary traffic stop is not normally that, so questions asked before an arrest usually do not require a warning and the answers usually come in. It is not automatic, though. A stop can become custodial depending on the degree of restraint, and the test is whether a reasonable person in the driver’s position would have considered themselves in custody.

“It is my word against his.” Less often than you would think. Wis. Stat. § 968.073 makes it the policy of this state that custodial interrogations of felony suspects be recorded, and Wis. Stat. § 968.073(3) provides that officers are not required to tell you a recording is being made. Add squad video and body-cam and most of what happened is on a file somewhere. That cuts both ways, which is precisely why preservation letters go out in the first week of a case rather than the fourth month, while retention schedules are still on our side.

What politeness at the roadside actually buys you

It does not buy you a warning, and it does not buy you a better plea offer. It buys you a clean record of the stop.

Wisconsin charges nearly every OWI under two theories at once, Wis. Stat. § 346.63(1)(a) for impairment and Wis. Stat. § 346.63(1)(b) for the prohibited alcohol concentration. That is why what you say about how much you drank can matter even in a case that looks like it is only about a number.

If it already happened

If you took the roadside test because you were told you had to, or refused the station test because you thought it was the same device, the decision is behind you and the next one is in front of you. Read the paperwork the officer handed you, find the date on it, and count ten days.

Call (262) 632-5000 or use our contact form. We serve Racine, Kenosha and Walworth counties, and the first conversation is free whether or not you hire anyone.

Related reading: Refusal hearings · Administrative suspension · Roadside saliva testing under Act 99 · Prohibited alcohol concentration · 1st-offense OWI · The first 30 days after a Racine OWI arrest · Can an OWI be dismissed in Wisconsin?

Speeding, points, license-status tickets and other non-impaired traffic matters are handled by our traffic practice at racineticket.com. Questioning, Miranda and interrogation issues in any other criminal charge are covered by the main firm at racinelaw.com.

This post is general information about Wisconsin law, not legal advice, and reading it does not create an attorney-client relationship.

Questions people actually ask

Can police lie to you in Wisconsin?
Yes, within limits, and it is one of the most useful things to know before you are ever stopped. The governing decision is federal rather than Wisconsin. In Frazier v. Cupp, 394 U.S. 731 (1969), officers falsely told a suspect that a companion had confessed, and the U.S. Supreme Court held the misrepresentation was, in its words, while relevant, insufficient to make an otherwise voluntary confession inadmissible. Voluntariness is judged on the totality of the circumstances. So an officer may say that a witness already told them something, that a test is standard procedure, or that cooperating now will help later, and none of those statements has to be accurate. What officers may not do is coerce a statement, and the line between persuasion and coercion is exactly what a suppression motion litigates. The practical takeaway is simple: what the officer tells you at the roadside is not legal advice, and it is not a reliable description of your rights. Cafferty, Scheidegger & Johnson, S.C. answers OWI calls 24 hours a day at (262) 632-5000, and the first conversation is free.
Do I have to do field sobriety tests in Wisconsin?
No. Wisconsin field sobriety tests are voluntary. There is no statute that compels you to perform the horizontal gaze nystagmus test, the walk-and-turn, or the one-leg stand, and declining them is not an implied consent violation, so it carries no automatic license penalty. That is a different question from whether declining helps you. Performance on these tests is scored by the officer who stopped you and is a major source of the probable cause that supports the arrest, so the tests very often produce evidence against the driver. Declining may also lead the officer to arrest on the other observations already gathered. What declining cannot do is trigger the revocation that follows a refusal of the evidentiary chemical test under Wis. Stat. § 343.305.
Can I refuse a breathalyzer in Wisconsin?
There are two different breath tests in a Wisconsin OWI stop and the answer is different for each one. The roadside device, the preliminary breath test under Wis. Stat. § 343.303, is a screening tool. Its result is not admissible to prove impairment, and the statute expressly says the general penalty provision under Wis. Stat. § 939.61(1) does not apply to a refusal to take it, so declining the PBT carries no implied consent consequence. The test at the station or the jail, offered after the Informing the Accused form is read to you, is the evidentiary test under Wis. Stat. § 343.305. Refusing that one triggers an automatic revocation of 12 months for a first refusal, 24 for a second and 36 for a third or subsequent under Wis. Stat. § 343.305(10), and Wis. Stat. § 343.307(1)(f) lists the § 343.305(10) revocation as a counted prior, subject to an important constitutional limit. State v. Forrett, 2022 WI 37, held Wis. Stat. §§ 343.307(1) and 346.65(2)(am) "unconstitutional to the extent that they count prior revocations resulting solely from a person's refusal to submit to a warrantless blood draw as offenses for the purpose of increasing the criminal penalty." That limit is blood only: it does not reach breath-test refusals, and it does not disturb the civil revocation itself. If you refused the evidentiary test you have 10 days from service of the Notice of Intent to Revoke to demand a refusal hearing, and § 343.305(9)(a)4 requires that written request go to the court whose address is specified in the notice, not to the DOT.
What is the difference between a PBT and a breathalyzer in Wisconsin?
Timing, statute and consequence. The PBT is the handheld device offered at the roadside before arrest under Wis. Stat. § 343.303. An officer needs probable cause to believe you are violating the OWI statute before requesting it, the result is admissible only to show probable cause for an arrest or to prove a chemical test was properly requested, and there is no statutory penalty for declining. The evidentiary test is offered after arrest under Wis. Stat. § 343.305, usually on a stationary instrument at the station or as a blood draw, and that result is what the State uses to prove the case at trial, including the prohibited alcohol concentration theory under Wis. Stat. § 346.63(1)(b). One is a screening decision with no license consequence. The other is the decision that starts a second case with its own 10-day clock.
Can I call my lawyer before deciding whether to take the breath test?
In Wisconsin, no, and this surprises almost everyone. The Wisconsin Supreme Court held in State v. Neitzel, 95 Wis. 2d 191, 289 N.W.2d 828 (1980), that Wisconsin's implied consent statute makes no provision for a right to counsel, and that a driver who conditions submission to the chemical test on the ability to confer with an attorney refuses the test. So asking for a lawyer and then not blowing can itself be the refusal, with the revocation and the prior-offense consequence that follow. The court later confirmed in State v. Reitter that where a driver exhibits no confusion, the officer is under no affirmative duty to advise that the right to counsel does not attach to the implied consent decision. What you can do afterwards is call immediately. The 10-day windows under Wis. Stat. § 343.305(8) and Wis. Stat. § 343.305(9) run from the notice you were handed, not from your court date, and they are the part of the case most often lost by waiting.
Do the police have to read me my rights during an OWI stop?
Usually not at the roadside. Miranda protections attach to custodial interrogation, and Wisconsin courts apply the federal standard from Berkemer v. McCarty, 468 U.S. 420, 440 (1984): the safeguards attach once a suspect's freedom of action is curtailed to a degree associated with formal arrest. An ordinary traffic stop is not normally that, so questions asked before an arrest, including where you have been and how much you have had, often do not require a warning and the answers often come in. It is fact-specific rather than automatic, because a stop can become custodial depending on the degree of restraint, and the test Wisconsin applies is whether a reasonable person in the driver's position would have considered themselves in custody. What is clear is that the absence of a Miranda warning is not by itself a defense. Separately, Wisconsin has a recording policy: Wis. Stat. § 968.073 makes it the policy of this state that custodial interrogations of felony suspects be recorded by audio or audio and video, and Wis. Stat. § 968.073(3) provides that officers are not required to tell you the recording is happening. Squad video and body-cam footage from an OWI stop are subject to agency retention schedules, which is why preservation letters go out in the first week of a case rather than the fourth month.
Is the roadside breath test admissible in court in Wisconsin?
Not to prove you were impaired. Wis. Stat. § 343.303 says the result of the preliminary screening test is not admissible in any action or proceeding except to show probable cause for an arrest if the arrest is challenged, or to prove that a chemical test was properly required or requested under Wis. Stat. § 343.305(3). So the PBT number can support the arrest, and it can be argued about at a suppression hearing, but the State cannot put it in front of a jury as proof of your alcohol concentration. The number that does that job is the evidentiary breath or blood result. The same rule now covers the roadside oral-fluid swab authorized by 2025 Wisconsin Act 99, because that act amended Wis. Stat. § 343.303 rather than the implied consent statute.
What should I say to the officer during an OWI stop in Wisconsin?
Identify yourself, hand over the license, registration and proof of insurance, and comply with lawful commands. Beyond that, the safest position is polite and brief. You are not required to narrate your evening, and the answers to where have you been and how much have you had go straight into the report and onto the squad video, where they become the officer's stated basis for the investigation. Arguing at the roadside does not help and it is recorded. Wisconsin also charges nearly every OWI under two theories at once, Wis. Stat. § 346.63(1)(a) for impairment and Wis. Stat. § 346.63(1)(b) for the prohibited alcohol concentration, so statements about how much you drank can matter even in a case that seems to be only about the number.

Your defense team

Every case is worked directly by a named attorney from first call through final disposition. You will never be handed off to a paralegal or rotated through associates. Your attorney knows your case because they built it.

Patrick K. Cafferty, founding partner and OWI/DUI defense attorney in Racine, Wisconsin

Patrick K. Cafferty

Founding Partner

Marquette Law graduate defending OWI and criminal cases across southeast Wisconsin for over 32 years. Named a Wisconsin Super Lawyer® 18 consecutive years and rated AV Preeminent® by Martindale-Hubbell.

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Jillian J. Scheidegger, partner handling OWI/DUI and criminal defense across southeast Wisconsin

Jillian J. Scheidegger

Partner

At the firm since 2013 and now a partner, handling criminal defense and OWI matters for adults and juveniles. Marquette Law graduate, Wisconsin Super Lawyer®, and President-Elect of the Racine County Bar Association.

Member, National College for DUI Defense

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Carl Johnson, OWI/DUI trial attorney practicing in Racine, Kenosha, and Walworth counties

Carl Johnson

Partner

Marquette Law 2006, UW-Madison undergrad. Extensive trial experience including first-degree homicide and sexual assault defense. Racine native practicing in Racine, Kenosha, and Walworth counties.

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Juan S. Ramirez, bilingual OWI/DUI defense attorney and former public defender

Juan S. Ramirez

Attorney

Michigan State Law graduate and former Racine County Public Defender. Bilingual English/Spanish. Won the WACDL Hanson Memorial Advocate Prize for a homicide acquittal. Advises on how criminal charges affect immigration status.

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