Florida’s Implied Consent Law and Refusing Alcohol Testing

Florida law requires drivers lawfully arrested for a DUI to agree to a blood, breath, or urine test.

When investigating someone for driving under the influence (DUI), it's common for an officer to ask the person to take a breath, urine, or blood test to determine the amount of alcohol or drugs in the driver's system. The driver's blood alcohol concentration (BAC) or the concentration of drugs in the driver's blood is often used to prove a DUI in court.

This article gives an overview of Florida implied consent law and the consequences of an unlawful refusal.

Implied Consent

Florida's implied consent law specifies that any person who holds a Florida driver's license or operates a vehicle within the state is deemed to have consented to one or more of the following tests if lawfully arrested for a DUI. For a DUI arrest to be lawful, the officer must have probable cause to believe that the driver was driving or in actual physical control of a vehicle while under the influence of alcohol and/or drugs.

Breathalyzers. A driver who has been arrested to a DUI must submit to an infrared light breath test (also known as a "breathalyzer") if requested to do so by the arresting officer.

Urine tests. If an officer suspects a driver is under the influence of an intoxicating chemical or controlled substance and makes an arrest, the driver cannot lawfully refuse to take a urine test.

Blood tests. A blood test can be used to test for the concentration of alcohol and the presence of controlled substances. However, a driver is not required to take a blood test unless a breath or urine test is impractical or impossible, such as when a driver is hospitalized or unconscious.

Consequences of Refusal

License suspension. Unlawful refusal of a chemical test will result in a one-year driver's license suspension for a first offense. A second or subsequent refusal carries an 18-month suspension.

Restricted license. Drivers who have their license suspended for a refusal are eligible for a temporary restricted license. To be eligible, the applicant must complete a DUI substance abuse education course and evaluation and may be required to provide letters of recommendation. A restricted license allows the holder to drive only for business or educational purposes, and the driver may be required to use an ignition interlock device (IID) as a condition of the restricted license. Third-time violators are not eligible for the restricted license.

Evidentiary uses. A driver may believe that refusing a test will make it difficult to prove he or she was driving under the influence. However, the fact that a driver refused to submit to testing can be used against the driver in the criminal case. While refusal doesn't exactly prove intoxication, prosecutors often argue a refusal is indicative that the person was trying to hide impairment.

Criminal charges. Depending on the circumstances, an unlawful refusal might also lead to criminal charges. A conviction will result in a maximum of $1,000 and up to one year in jail.

Contesting the Suspension

A driver suspended for refusing a chemical test must submit a written request for formal review within ten days if he or she wishes to contest the suspension.

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