What is a deferred prosecution agreement in Wisconsin?

Answered by Attorney Pat Stangl of Stangl Law Offices, S.C.

Screen_Shot_2015-09-14_at_2,03,42_PM-photoaidcom-cropped

What is a deferred prosecution agreement in Wisconsin?

A deferred prosecution agreement (DPA) is a second chance to avoid a criminal conviction. But you only get this chance if you meet strict conditions and complete the program successfully. Under Wisconsin law, a DPA lets you pause the prosecution for a set period of time. If you follow all the rules, your charges can be dismissed completely.

Here's what most people don't realize: When you enter a DPA, you give up your right to a speedy trial. The agreement also pauses any time limits on filing charges. In some cases after you've been charged, you may also need to plead guilty.

If you don't follow the agreement, the district attorney can cancel it. Then they can restart prosecution by sending you written notice, as the law allows.

Time is critical. Whether you should accept a deferred prosecution agreement depends on your specific case, what charges you're facing, and whether you can meet all the conditions. Don't make this decision alone.


Understanding Deferred Prosecution Agreements in Wisconsin

When you're charged with a crime in Wisconsin, the district attorney might offer you a deferred prosecution agreement.

What Exactly Is a DPA?

According to Wisconsin Statute 971.37, a deferred prosecution agreement is a written agreement. Both you and the district attorney (or someone they designate) must sign it. It pauses prosecution for a set period of time if you follow the conditions listed in the agreement.

Here's how it works:

The agreement must be in writing. Both you and the district attorney (or their representative) must sign it. When you sign, you agree to specific terms. The prosecution is put on hold—not dismissed, but paused.

You give up your right to a speedy trial. The agreement also pauses any time limits on filing criminal or civil charges while the agreement is active.

If you successfully complete all conditions, the court will dismiss your charges with prejudice. This means those charges can never be filed against you again.

If you violate the agreement, prosecution can start up again. You could face the full consequences of the original charges.

Who Qualifies for a Deferred Prosecution Agreement?

Wisconsin law allows DPAs for different types of cases under different laws:

Under Wisconsin Statute 971.37 (Domestic Abuse and Child Sexual Abuse):

  • People accused of or charged with child sexual abuse
  • Adults accused of or charged with specific domestic abuse-related crimes identified in the law

Under Wisconsin Statute 971.39 (Department of Corrections Programs):

  • Available in counties with fewer than 100,000 people
  • Requires the district attorney, the Wisconsin Department of Corrections, and you (the defendant) to all be involved
  • You must write down and admit to all parts of the crime you're charged with

Under Wisconsin Statute 971.37(5), deferred prosecution agreements can also be used for other alleged violations not specifically covered by the domestic abuse or child abuse sections.

According to Dane County's Deferred Prosecution Program, you must:

  • Be 17 years old or older when the offense happened
  • Be charged with or referred for a crime that happened in that specific county
  • Take meaningful accountability and responsibility for what happened
  • Agree to participate voluntarily and sign a personalized DPA
  • Show active participation, accountability, and willingness to follow the program's strict expectations

Special Programs for Specific Offenses

Wisconsin law allows specialized deferred prosecution programs:

Worthless Checks Program (Wisconsin Statute 971.41): The district attorney may set up a program for people accused of writing bad checks. The agreement includes making restitution and paying program fees.

Volunteers in Probation Program (Wisconsin Statute 971.40): The court, district attorney, and you can enter into a DPA for placement with a volunteers in probation program under Wisconsin Statute 973.11.

What Cases Are NOT Eligible?

Waukesha County's program specifically excludes certain crimes, including:

  • OWI offenses (Wisconsin Statute 967.055(3) prohibits deferred prosecution for OWI)
  • Crimes involving violence with firearms, force against another person, or serious bodily injury/death
  • Fleeing from police under Wisconsin Statute 346.04(3)
  • Gang-related activity
  • Certain firearm-related crimes

Additionally, Dane County excludes people with:

  • Current supervision in any jurisdiction
  • Pending or open criminal cases
  • Prior probation, parole, extended supervision, or DPP participation within the past five years
  • Criminal convictions within the past five years

What Are the Typical Conditions?

DPA conditions vary based on your case. But Wisconsin laws and county programs outline common requirements:

Treatment and Programming (Wisconsin Statute 971.39):

  • Participation in therapy or community programs
  • Following all conditions required by the treatment programs

Community Service (Wisconsin Statute 971.38): The district attorney may require you to perform community service work for a public agency or nonprofit organization. The number of hours required must be reasonable based on how serious the alleged crime is.

Monitoring and Reporting:

  • Under Statute 971.39, the Department of Corrections monitors whether you're following the rules
  • Under Statute 971.37, you must file a monthly written report with the district attorney. This report confirms that you're following the agreement
  • Wisconsin Community Services provides treatment referrals, drug testing, and monitors community service completion

Additional Common Conditions (from Dane County):

  • Stay drug and alcohol-free
  • Submit to drug screening throughout the agreement period
  • Don't commit any new law violations
  • Don't contact certain people
  • Pay restitution to victims
  • Pay program fees

Pre-Charge vs. Post-Charge DPAs

Dane County separates deferred prosecution agreements into two types:

Pre-Charge DPA:

  • Entered before criminal charges are filed
  • If you successfully complete the agreement, no charges are ever filed

Post-Charge DPA:

  • Entered after charges have been filed
  • You typically must enter a guilty plea to the charges
  • In post-charge cases, a plea is typically entered. But successful completion of the agreement results in dismissal of the case without a formal finding of guilt or conviction
  • If you successfully complete the agreement, you return to court for dismissal
  • The charge record stays on Wisconsin Circuit Court Access (CCAP) for two years. But the dismissal is noted and there is no formal finding of guilt or conviction

Should You Accept a Deferred Prosecution Agreement?

This is a critical decision that requires experienced legal guidance. A DPA can be an excellent opportunity to avoid a criminal conviction—but it's not right for everyone.

Consider accepting a DPA if:

  • You can realistically complete all the required conditions
  • The alternative (going to trial) carries significant risk of conviction
  • You want to avoid a permanent criminal record
  • The charges could be reduced or dismissed through the program
  • You're willing to take responsibility and put in the work

Think carefully before accepting if:

  • The conditions are unrealistic given your situation
  • You have strong defenses that could result in dismissal or not guilty verdict at trial
  • The required guilty plea would have immigration consequences
  • You cannot afford the program fees or treatment costs
  • You're facing pressure to accept without fully understanding the terms

The Critical Legal Protection: Consent Is Not an Admission of Guilt

Wisconsin Statute 971.37(4) provides an important protection:

"Consent to a deferred prosecution under this section is not an admission of guilt and the consent may not be admitted in evidence in a trial for the crime."

This means your willingness to enter into a DPA cannot be used against you if the agreement is canceled and you go to trial. However, there's an important exception: if your agreement requires you to plead guilty (common in post-charge DPAs), that plea itself can be used if prosecution starts again.

Also, under Wisconsin Statute 971.39(2), any written admission you make and any statements you make when discussing the DPA or to program staff are not allowed as evidence at trial.

What Happens If You Successfully Complete the DPA?

Wisconsin Statute 971.37(3) is clear:

"Upon completion of the period of the agreement, if the agreement has not been terminated...the court shall dismiss, with prejudice, any charge or charges against the person...or if no such charges have been filed, none may be filed."

This is the best outcome—your charges are dismissed permanently. You avoid a criminal conviction.

According to Dane County, successful completion means you benefit from:

  • Avoiding a criminal conviction that may affect employment, housing, personal freedom, reputation, relationships, voting rights, and firearm rights
  • Access to community resources and services
  • Education, guidance, and support through case management
  • Much lower costs compared to traditional prosecution

What Happens If You Violate the Agreement?

This is where things get serious. Under Wisconsin Statute 971.37(2):

"The written agreement shall be terminated and the prosecution may resume upon written notice by either the person or the district attorney to the other prior to completion of the period of the agreement."

Either you or the district attorney can end the agreement. If the DA ends it because you violated conditions, prosecution picks up where it left off.

Sanctions for Violations (Wisconsin Statute 971.375): The district attorney may give you sanctions if you violate a condition of the deferred prosecution agreement. This is done as provided in the system developed under Wisconsin Statute 301.03(3)(a).

According to Waukesha County, when you don't follow program requirements, this is reported to the District Attorney's Office and to the court. They decide the appropriate punishment or start the process to cancel your agreement.

Dane County warns that if you fail to complete the DPA terms:

  • Pre-charge cases go back to the DA's Office for further action (charges may be filed)
  • Post-charge cases go back to the assigned court. This can result in a finding of guilt and conviction, or a second referral to the program

If you've already pleaded guilty as part of a post-charge DPA, and the agreement is canceled, you will be sentenced on whatever charge you pled to—which could result in a felony conviction.

The Rights You Give Up

Here's the reality that many defendants don't fully understand: When you enter a deferred prosecution agreement—especially a post-charge DPA—you give up critical constitutional rights.

According to Wisconsin Statute 971.37(1m)(b), you must give up:

  • Your right to a speedy trial
  • Pausing any applicable statute of limitations for the length of the deferred prosecution period

In post-charge cases where you plead guilty, you also give up:

  • Your right to challenge the case through motions to suppress evidence or statements
  • Your right to trial by jury
  • Your right to confront witnesses against you
  • Your right to remain silent

This is not a decision to make lightly. Once you've pleaded guilty as part of a DPA, those rights are gone. If the agreement is later canceled, your plea stays and you'll be sentenced based on it.

How Long Does a DPA Last?

The length varies based on your case and the specific agreement. According to Dane County, the DPP Director has the power to:

  • Shorten the agreement if you've made significant progress toward your goals
  • Extend the agreement if major barriers to completion are identified

Typical agreements last anywhere from 6 months to 36 months. This depends on the charges and required programming.


Don't waste time—contact an experienced WI defense attorney today.

If you're facing criminal charges in Wisconsin, Attorney Stangl is happy to provide a free, 10-minute consultation to discuss your case, explore options for your defense, and help guide you if you're weighing the pros and cons of a deferred prosecution agreement.

New Call-to-action

Other Defense FAQs

How much will it cost to hire a lawyer in Wisconsin?

The cost of defending against criminal charges will vary depending upon the nature and severity of the charges, the facts of the case, and other factors, including the lawyer’s reputation. We usually have a two-set fee structure for representation in criminal cases. The first fee is a non-refundable retainer that covers all representation at the trial level unless the case proceeds to a jury or court trial. If the case proceeds to a jury or court trial then an additional non-refundable retainer fee is due three weeks prior to the first scheduled jury trial date. If those fees are not tendered, the firm will withdraw from further representation. The reason we have a two set fee structure is to allow us to thoroughly investigate, research, and develop defense strategies prior to the determination of whether proceeding to a jury trial is in our client’s best interest or not. That is a joint decision made with the client. Nonetheless, an individual has an absolute right to a jury trial regardless of our assessment of the likelihood of success on the merits.

We provide a free initial consultation so that we can fully assess your case and discuss fee arrangements. Do not be reluctant to ask specific questions about potential representation—there are no dumb questions, and if hired, our job and goal is to ethically, aggressively, and thoroughly defend your case. Our goal is to win. We promise that you will be provided with straightforward advice about the best manner in which to proceed, including potential likelihood of success on the merits, evidentiary and dispositive issues, and chances of success at trial or on appeal.

Do you handle all types of criminal cases in Wisconsin?

At Stangl Law Offices, S.C., we have successfully defended numerous types of state and federal felony cases including drug trafficking and drug conspiracies, fraud and other “white collar” crimes, and drunk driving.

What is the difference between a state crime and a federal crime?

Both state and federal laws outline penalties if these laws are broken. A federal crime can be charged when federal laws are broken, just as a state crime is charged when state laws are not followed. State crimes occur within a state's boundaries. But when state lines or national borders are crossed, the crime would be considered a federal offense against the government.

Can you be charged with both a state crime and a federal crime at the same time?

Yes, it is possible to find yourself facing both state and federal charges at the same time, though this is not a common occurrence. Be sure to contact a proven attorney with a record of success should you find yourself in this position.

How long do I have to file a criminal appeal in Wisconsin after conviction?

In Wisconsin, if you've been convicted of a crime and are considering an appeal, it's crucial to act promptly to preserve your rights. The appellate process is initiated by filing a Notice of Intent to Pursue Post-Conviction Relief, which must be submitted within 20 days of your sentencing hearing. This filing signals your intention to seek relief from the conviction or sentence and is a mandatory first step in the appeals process.

Once the Notice of Intent is filed, a series of procedural deadlines follow, including the ordering of transcripts, appointment of counsel if necessary, and preparation of the trial court record. Adhering to these timelines is essential, as missing them can jeopardize your ability to appeal.

Given the complexities and strict deadlines associated with criminal appeals in Wisconsin, it's advisable to consult with an experienced appellate attorney who can guide you through the process and help ensure all procedural requirements are met.

Do I need a lawyer for Wisconsin criminal appeals?

Navigating the complexities of a criminal appeal in Wisconsin can be daunting, and while you have the legal right to represent yourself, it is highly advisable to engage an experienced appellate attorney.

“After accepting a plea deal for disorderly conduct without realizing it barred me from firearm possession, affecting my job as a truck driver, I sought help for an appeal and found Stangl Law Offices. Despite a tight timeline, Pat Stangl took my case, warning of the challenge in withdrawing my guilty plea before the original judge, who indeed denied our motion. Unfazed, Pat escalated the matter to the Court of Appeals, where the State acknowledged a judicial error, leading to a remand for a hearing. Through skilled negotiation, Pat secured the vacating and dismissal of the domestic charge, restoring my right to possess firearms. Pat's dedication highlights why he's esteemed as a top appeals lawyer in Wisconsin, deserving of high recommendation for anyone needing exceptional legal representation.”

David

"I am a contractor who, unfortunately was charged with theft by a contractor of funds from proceeds of a construction loan. Even though I was not managing the construction jobs and was only responsible for the labor, I was ultimately charged as a party to the crime of theft. My entire career and future hung in the balance. I was scared I would never be able to work in the trades again. I hired Attorney Pat Stangl, who defended me against these charges. Through his zealous representation, he was able to demonstrate to the District Attorney that my involvement was limited. As a result of his excellent work, all charges against me will be dismissed.”

T.W.

If you feel your conviction was unjust, contact Wisconsin appeals Attorney Pat Stangl Today.

Other OWI Defense FAQs

If I'm stopped by a police officer and he asks if I've been drinking, what should I say?

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.

Do I have to take field sobriety tests in Wisconsin?

There are a wide range of field sobriety tests (FSTs), including heel-to-toe, finger-to-nose, one-leg stand, horizontal gaze nystagmus, alphabet recital, modified position of attention (Rhomberg), fingers-to-thumb, hand pat, etc. Most officers will use a set battery of three to five such tests.

Unlike the chemical test, where refusal to submit may have serious consequences, you are not legally required to take any FSTs. The reality is that officers have usually made up their minds to arrest when they give the FSTs; the tests are simply additional evidence that the suspect inevitably “fails.” Politely refuse to do any and all FSTs.

In Wisconsin, the police want you to submit to FSTs for two reasons. First, by submitting to the tests you are giving the officers facts to support a legal basis for arrest. This legal standard is probable cause. Secondly, the FSTs are used as evidence to prove the OWI charge. A chemical test result is not necessary to prove the elements of the OWI offense. That is why politely refusing all FSTs and not blowing into a handheld breath testing device in the field called a preliminary breath test or PBT is your best initial defense.

Do I have a right to an attorney when I'm stopped for drunk driving and asked to take a field sobriety test?

The law varies on this issue from state to state. In Wisconsin, there is no right to an attorney until you have submitted to (or refused) blood, breath, or urine testing once you are in custody and subject to questioning.

You are not legally required to submit to Field Sobriety Tests (FSTs) and it is not in your best interest to do so. Your license cannot be revoked nor can you be cited for a refusal if you politely refuse to do FSTs.

What are police looking for during an OWI stop in Wisconsin?

The traditional symptoms of intoxication taught at the police academy are:

Flushed face; red, watery, glassy, and/or bloodshot eyes; odor of alcohol on breath; slurred speech; fumbling with wallet trying to get license; failure to comprehend the officer’s questions; staggering when exiting vehicle; swaying/instability on feet; leaning on car for support; combative, argumentative, jovial or otherwise “inappropriate” attitude; soiled, rumpled, disorderly clothing; stumbling while walking; disorientation as to time and place; inability to follow directions.

Why did the police make me follow a light with my eyes from left to right?

This is the “horizontal gaze nystagmus” test, a relatively recent development in OWI investigation. The officer attempts to estimate the angle at which the eye begins to jerk. “Nystagmus” is medical jargon for a distinctive eye movement or oscillation. If this occurs sooner than 45 degrees, it theoretically indicates a blood-alcohol concentration over .05%. The smoothness of the eye’s tracking the penlight (or finger or pencil) is also a factor, as is the type of jerking when the eye is as far to the side as it can go.

This field sobriety test has proven to be subject to a number of different problems, not the least of which is the non-medically trained officer’s ability to recognize nystagmus and estimate the angle of onset. Because the medical community does not accept the test, it is not admissible as evidence in many states; it continues, however, to be widely used by law enforcement. It is admissible in Wisconsin and is subject to the weight the fact finder is willing to give it subject to cross-examination.

How do police decide who to pull over for drunk driving in Wisconsin?

The following is a list of things officers consider when searching for drunk driving, in order of probability that the driver is intoxicated. This list is based upon research conducted by the National Highway Traffic Safety Administration.

  • Turning with a wide radius
  • Straddling center of lane marker
  • “Appearing to be drunk”
  • Almost striking object or vehicle
  • Weaving, swerving or drifting
  • Driving on other than designated highway
  • Speed more than 10 mph below limit
  • Stopping without cause in traffic lane
  • Following too closely
  • Tires on center or lane marker
  • Braking erratically
  • Driving into opposing or crossing traffic
  • Signaling inconsistent with driving actions
  • Slow response to traffic signals
  • Stopping inappropriately (other than in lane)
  • Turning abruptly or illegally
  • Accelerating or decelerating rapidly
  • Headlights off
Should I agree to take a chemical test? What happens if I don’t?

The consequences of refusing to submit to a blood, breath or urine test varies according to the state. In Wisconsin, there are three adverse consequences:

Your driver’s license will be revoked for at least one year and up to two years depending on whether you have any prior convictions. A refusal violation, at this time, is a civil proceeding and is not a crime. Thus you cannot be sent to jail for a refusal. However, a refusal can be counted as a prior conviction for purposes of charging you with a subsequent enhanced offense. For example, if you had a refusal violation in 1995 and are cited for an OWI or PAC violation in 2004, it will be charged as a second offense, which is a crime.

Finally, the fact of refusal may be introduced into evidence at trial on the OWI charge as “consciousness of guilt.” Of course, the defense is free to offer other reasons for the refusal. Thus, the decision is one of weighing the likelihood of a high blood-alcohol reading against the consequences for refusing.

Do I have a choice of chemical tests? Which should I choose?

In Wisconsin, you do not have a choice of a blood, breath, or urine test. Rather, the arresting agency determines what their primary test will be—blood or breath. While the law allows for urine tests, due to their unreliability, they are not used in Wisconsin. Since you don’t have a choice of tests, the question becomes the chance of registering a high BAC-Blood/Breath Alcohol Concentration against the consequences for refusing. If you submit to the primary test offered by the arresting agency, you have the absolute right to the alternative test free of charge. The officer cannot interfere with your right to that alternative test or it can lead to suppression of the test results. You should always request the alternative test.

The officer never gave me a “Miranda” warning. Can I get my case dismissed?

No. The officer is supposed to give a 5th Amendment warning once you are in custody and questioned. Often, however, they do not. The only consequence is that the prosecution cannot use any of your answers to questions asked by the police after the arrest in its case at trial.

Of much greater consequence is the failure to advise you of the standard “implied consent” law – that is, your legal obligation to take a chemical test and the results if you refuse. In Wisconsin this information is contained on a pink sheet which is called “The Informing the Accused.” This can affect the suspension and revocation of your license.

Why am I being charged with TWO crimes?

In Wisconsin, the traditional offense is “operating under the influence of an intoxicant” (OWI). In recent years, however, 49 states have also enacted a second, so-called “per se” offense: driving with an excessive blood alcohol concentration (either .08%–as in Wisconsin–or .10% in some other states). In Wisconsin, BOTH offenses are charged unless a person refuses the chemical test; however, forcible blood draws are permissible under certain circumstances in Wisconsin and can still result in a PAC charge even if you initially refuse.

The officer took my license and served me with a notice of intent to revoke after the breath test. How can he do that if I’m presumed innocent?

Agreed, it is blatantly unfair. But the law in most states (including Wisconsin) having a “per se” statute (see question above) provides for immediate suspension and confiscation of the license if the breath test result is above the legal limit (or, in the case of a blood test once the result shows a prohibited concentration).

Warning: Be aware of the 10-day deadline for requesting a hearing on the suspension. Once a prohibited concentration is registered, you should receive a yellow sheet of paper which needs to be filled out to request an administrative hearing. We may be able to get your license reinstated pending the resolution of the charges.

Can I represent myself? What can a lawyer do for me?

You can represent yourself, but it is not a good idea. Drunk driving is a very complex area of the law with increasingly harsh consequences. There is a minefield of complicated procedural, evidentiary, constitutional, sentencing, and administrative license issues.

What can a lawyer do? Nothing (or worse) if he is not qualified in this highly specialized field—no more than a family doctor could help with brain surgery. A qualified attorney, on the other hand, can review the case for defects, suppress evidence, compel discovery of such things as calibration and maintenance records for the breath machine, have blood samples independently analyzed, negotiate for a lesser charge or reduced sentence, obtain expert witnesses for trial, contest the administrative license suspension, and win trials and refusal hearings.

How can I find a qualified drunk driving lawyer?

The best way to find a good DUI/DWI lawyer is by reputation. There are attorneys who have state and national reputations; these, of course, are expensive.

An excellent indication of quality and experience is membership in the National College for DUI Defense. Completion of that organization’s interactive three-day seminar presented at Harvard Law School every year is another clear sign of expertise.

When you meet with an attorney, make sure of three things:

  • He or she has extensive experience in OWI and criminal litigation.
  • He or she has a reputation for going to trial in appropriate cases and winning, rather than just “pleading out” his or her clients.
  • The financial terms of representation are clear.
What will it cost to get a lawyer?

This varies, of course, by the reputation and experience of the lawyer and the geographic location. Generally, the more skilled the attorney and the larger the city, the higher the fee. A related factor is the amount of time a lawyer devotes to his cases: the better lawyers take few clients, spending more hours on each.

The range of fees is significant. An OWI specialist with a statewide reputation for winning may charge five to ten thousand dollars or more, depending on the facts. In addition, the fee may vary by other factors, including:

  • Whether the crime is a misdemeanor or felony
  • Whether prior convictions are alleged
  • Whether there will be a trial or an appeal
  • Administrative license suspension procedural costs
  • Whether the lawyer charges a fixed flat fee or retainer in advance, to be applied against hourly charges
  • Costs of expert witness fees, independent blood analysis, subpoena services, etc.
What is the punishment for drunk driving?

This varies according to the laws of the state and the customs of the local jurisdiction. In Wisconsin, a conviction for a first offense is a civil violation and involves a forfeiture, revocation, mandatory AODA Assessment, and perhaps attendance at a Victim Impact Panel.

For a second offense, the penalties upon conviction range from a minimum mandatory penalty of five days and up to six months in jail. Punishments include a fine range from a minimum $350.00 to $1,100.00, plus costs and administrative surcharges, as well as a mandatory AODA Assessment. Ignition interlock devices can also be ordered. The greater the number of prior convictions, the greater the jail and/or prison term that can be imposed.

In Wisconsin, for purposes of evaluating prior convictions, a ten-year window is used; however, this window will not extend before January 1, 1989 for second offenses. For purposes of evaluating prior convictions for a third or greater offense, the prosecution can go back throughout a lifetime.

If convicted of an OWI offense in Wisconsin, that conviction now remains on your driving record abstract for life.

What is a sentence enhancement?

Most states including Wisconsin increase the punishment in drunk driving cases if certain facts exist. The most common of these is an earlier conviction for the same or similar offense, usually within ten years for a second offense or lifetime for a third or greater offense. Other commonly encountered enhancements (which must usually be alleged in the complaint) include:

  • A child under the age of 16 was in the car at the time
  • The blood-alcohol concentration was over 20%.
  • The defendant refused to submit to a chemical test
  • There was property damage or bodily injury
What is a “rising BAC defense”?

It is unlawful to have an excessive blood-alcohol concentration (BAC) at the time of driving, not at the time of being tested. Since it takes between 30 minutes and 3 hours for alcohol to be absorbed into the system, an individual’s BAC may continue to rise for some time after he is stopped and arrested.

Commonly, it is an hour or more after the stop when the blood, breath, or urine test is given to the suspect. Assume that the result is .10%. If the suspect has continued to absorb alcohol since he was stopped, his BAC at the time he was driving may have been only .07%. In other words, the test shows a blood-alcohol concentration above the legal limit, when his actual BAC at the time of driving which is what must be proved was below the legal limit.

What is “mouth alcohol” or “residual mouth alcohol”?

“Mouth alcohol” refers to the existence of any alcohol in the mouth or esophagus. If this is present during a breath test, then the results will be falsely high. This is because the breath machine assumes the breath from the lungs; for complex physiological reasons, its internal computer multiplies the amount of alcohol by 2100. This is known as a “portion ratio.” Thus, even a tiny amount of alcohol breathed directly into the machine from the mouth or throat rather than the lungs can have a significant impact.

Mouth alcohol can be caused in many ways. Belching, burping, hiccupping, or vomiting within 20 minutes before taking the test can bring vapor from the alcoholic beverages still in the stomach up into the mouth and throat. Taking a breath freshener can send a machine’s reading way up (such products as Bianca and Listerine have alcohol in them); cough syrups and other products also contain alcohol. Dental bridges and dental caps can trap alcohol. Blood from the mouth from an injury is yet another source of inaccurate breath test results: breathed into the mouthpiece, any alcohol in the blood will be multiplied 2100 times. A chronic “reflux” condition from gastric distress or hiatal hernia can cause elevated BAC readings.

What defenses are there in an OWI case?

Potential defenses in any given drunk driving case are almost limitless due to the complexities of the offense. Roughly speaking, however, the majority can be broken down into the following areas:

  • Driving. Intoxication is not enough: the prosecution must also prove that the defendant was driving. This may be difficult if, as in the case of some accidents, there are no witnesses to his being the driver of the vehicle.
  • Probable cause. Evidence will be suppressed if the officer did not have legal cause to (a) stop, (b) detain, or (c) arrest the person being charged. Sobriety roadblocks present particularly complex issues.
  • Miranda. Incriminating statements may be suppressed if warnings were not given at the appropriate time.
  • Implied consent warnings. If the officer did not properly advise you of the consequences of refusing to take a chemical test, or gave it incorrectly, in some states (including Wisconsin) this may invalidate a DMV license suspension based upon a refusal to provide a breath/blood sample.
  • “Under the influence.” The officer’s observations and opinions as to intoxication can be questioned. The circumstances under which the field sobriety tests were given, for example, or the subjective (and predisposed) nature of what the officer considers as “failing” may be challenged. Also, witnesses can offer their opinion that you appeared to be sober.
  • Blood-alcohol concentration. There exists a wide range of potential problems with blood, breath, or urine testing. For example, a non-specific analysis: most breath machines will register many chemical compounds found on the human breath as alcohol. Breath machines assume a 2100-to-1 ratio in converting alcohol in the breath into alcohol in the blood; in fact, this ratio varies widely from person to person (and with a person from one moment to another). Radio frequency interference can result in inaccurate readings. These and other defects in analysis can be brought out in cross-examination of the state’s expert witnesses and/or the defense can hire its own forensic chemist.
  • Testing during the absorptive phase. The blood, breath, or urine tests can be unreliable if done while you are still actively absorbing alcohol (it takes 30 minutes to three hours to complete absorption; this can be delayed if food is present in the stomach). Thus, drinking “one for the road” can cause inaccurate test results.
  • Retrograde extrapolation. This refers to the requirement that the BAC be “related back” in time from the test to the actual driving. Again, a number of complex physiological problems are involved here.
  • Regulation of blood-alcohol testing. The prosecution must prove that the blood, breath, or urine test complied with state requirements as for calibration, maintenance, etc.
  • License suspension hearings. A number of issues can be raised in the context of an administrative hearing before the state’s department of motor vehicles.

"I was charged with a criminal operating with a restricted controlled substance offense and had the good fortune of a friend, whom Pat had previously helped, recommend him to me. Pat was extremely knowledgeable, thorough and professional. My charge was amended to a different offense and thanks to Pat I never spent any time in jail. I strongly recommend him to anyone looking for a criminal lawyer.”

Leslie Fox

“After being charged with a first offense OWI, I felt completely helpless and at the mercy of the legal system. I approached several potential lawyers about my case, none who seemed as understanding, courteous, and straight to the point as Patrick Stangl. I decided I wanted him to represent me as soon as possible, and it is a decision I will never regret as my case was ultimately dismissed. I highly recommend Patrick Stangl if you are in need of a defense attorney.”

R.S.

If you've been charged with a drug crime in Wisconsin, contact Wisconsin drug defense Attorney Pat Stangl Today.