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Everything About Missouri Breathalyzer Laws

What You Need to Know About Missouri Breathalyzer Laws

Between 2013 and 2020, Missouri recorded an average of 22 thousand annual arrests for driving while intoxicated (DWI), according to the Department of Mental Health’s latest Missouri Trend Data report. Before any arrest, a law enforcement officer will conduct a breathalyzer test, also called a breath alcohol test, to measure the driver’s breath alcohol concentration under the implied consent law.

Every driver on public highways in Missouri must submit to a breath test when being pulled over for suspicion of drunk driving. Now, you can refuse the testing according to section RSMo 577.041, but you’ll risk some consequences, including the immediate suspension of your driver’s license.

However, alcohol tests must be conducted following the rules laid out in Missouri implied consent and DWI law. Therefore, you have rights and defenses that you can invoke to fight a DWI charge.

Consider Benjamin Law Firm, LLC when you need a lawyer to assist you in navigating the law on DWI.

What Are Breathalyzer Tests?

Breathalyzer tests are used to determine the amount of alcohol in the exhaled air. The measured breath alcohol content (BrAC) is then used to estimate blood alcohol content (BAC).

There are two types of breath tests:

  • A preliminary breath test (PBT) used at the arrest

  • An evidential breath test, such as a urine test or a blood test, used after the arrest to obtain admissible evidence of the driver’s BAC

1. A Preliminary Breath Test (PBT): The arresting officer uses a portable breathalyzer device to measure the driver’s BAC after the traffic stop. Its results can be used as evidence of probable cause, but they are not admissible as evidence of blood alcohol content.

2. Evidential Breath Test (EBT): This test is used to obtain evidence for court proceedings. It must be carried out following the Missouri Department of Health rules in order to be valid.

Breath test results reflecting a BAC of .08% or more for adults or .02% for minors will result in a driver’s license suspension. The period depends on your prior DWI convictions. The arresting officer will hand you a Notice of Suspension/Revocation of Driving Privilege (Form 2385) and, if your license is taken, a temporary 15-day driving permit. If you refuse the test, there’s going to be an automatic one-year license revocation.

Besides administrative penalties, you may be charged with DWI if your BAC exceeds the legal Blood alcohol limit in Missouri.

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You Have Rights Under Missouri’s Implied Consent Law

If you’re driving on public highways in Missouri, then legally, you have to have “consented” to a breath or blood test at a traffic stop or DWI checkpoint. However, you have rights that must be upheld for a test to be valid.

  • Right to refuse: Individuals have the right to refuse to take a chemical test. An officer cannot force or manipulate you into taking a test. Note that if a driver refuses to take a chemical test, they can lose their driving privileges.

  • Consult an attorney before testing: Drivers must be allowed twenty minutes to try and contact an attorney upon request. A refusal is only official after the twenty minutes elapse.

  • Number of tests: Chemical tests conducted under the implied consent law are limited to two for a single incident, arrest, stop, detention, or charge.

  • Testing method: The chemical test must follow the methods approved by the Missouri Department of Health and Senior Services and be performed by licensed personnel.

  • Right to information: The individual tested can request the following information:

    • Test type and followed procedures

    • The time of the collection of the breath, blood, or urine test sample

    • The numerical results

    • The type and status of the permit held by the person performing the test

    • The date of the last maintenance of the breath-testing device

  • Right to an independent test: Individuals may request an independent test at their own expense after the law enforcement’s chemical test.

  • Explanation of evidence and consequences: Arresting officers must inform drivers of the reasons for requesting a chemical test and the consequences of refusal. This includes using the evidence of refusal against them in court and the revocation of their driver’s license.

  • Review and hearing: Individuals can request an administrative hearing to contest the driver’s license revocation resulting from refusal of a chemical test.

Violations of these and constitutional rights can constitute solid defenses to DWI charges. Consult our attorneys as soon as possible for a case evaluation.

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The Consequences of a Breathalyzer Test Refusal

A breathalyzer or chemical test refusal warrants an automatic driver’s license suspension for one year if you haven’t had a previous DWI conviction. This is known as chemical revocation.

Refusing a breath test does not mean you will avoid criminal charges. The court can issue a warrant for a forcible test, which denies the driver a right to refuse a breath test. Also, the refusal itself may be used as an indication of guilt and thus warrant further proceedings.

During the one-year chemical revocation period, you may be able to obtain a limited driving privilege (LDP), also known as a restricted driving privilege, to travel to pre-approved places and situations such as work and medical appointments. To qualify for an LDP, you will be required to install an ignition interlock device (IID) in the vehicle you’ll be using.

When you get your driver’s license back, you’ll have to pay a reinstatement fee of $43 to the Missouri Department of Revenue and must complete a SATOP (Substance Abuse Traffic Offender Program). With two or more alcohol or drug-related convictions or arrests on your record, you’ll also have to install an ignition interlock device.

 
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Challenging Driver’s License Suspension After Breathalyzer Refusal

When you refuse a breathalyzer test, the arresting officer confiscates your license and issues a notice of revocation and a 15-day temporary permit. Within 30 days of issuing the notice of revocation, you can appeal the revocation in a petition to a circuit court judge alleging the arresting officer lacked reasonable grounds for the arrest or failed to follow the required procedures.

Having legal counsel during this process is crucial. They can help you identify such grounds or loopholes to help you win your DWI case.

The Benefits of Hiring a Law Firm to Navigate This Law

Navigating DWI and chemical testing requires an extensive understanding of Missouri law and experience handling similar cases. Our attorneys at Benjamin Law Firm, LLC have been representing Missouri residents in DWI cases for decades and have successfully obtained countless dismissals. Don’t just take our word for it. Our results and client reviews speak for themselves.

At Benjamin Law Firm, LLC, we are dedicated to fighting for your rights and obtaining the best possible results for you.

Call us today to schedule a free consultation.

The Importance of Legal Assistance in the Reinstatement Process
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