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Boise Felony DUI Attorney

A felony DUI charge is one of the most serious criminal matters an Idaho resident can face. Unlike a standard DUI, a felony conviction can carry significant jail or prison time, a permanent criminal record, and can affect nearly every area of your life. If you are facing a felony DUI charge in Boise or anywhere in Idaho, the time to act is now.

Martens Law Office defends individuals charged with felony DUI throughout the Boise area and across Idaho. Our experienced criminal defense attorneys bring focused experience to these cases and are ready to fight for the best possible outcome for you. Call (208) 344-0994 or visit us online to schedule a free consultation.

Idaho Felony DUI Laws and What Prosecutors Must Prove

In Idaho, most first and second DUI offenses are charged as misdemeanors. A felony DUI is a different matter entirely, and understanding exactly what elevates a charge to felony level is the starting point for building your defense.

To secure a felony DUI conviction, prosecutors must prove beyond a reasonable doubt that you were operating a motor vehicle while under the influence of alcohol or drugs, and that the circumstances of the offense meet one of the statutory criteria for felony classification. Each element of that proof may be subject to challenge, and a skilled defense attorney can examine each one carefully.

When Does a DUI Become a Felony in Idaho?

Idaho law specifies four scenarios under which a DUI charge rises to felony level. For example:

A third DUI conviction within ten years is the most common path to a felony DUI charge in Idaho. If you have two prior DUI convictions within the preceding decade and are arrested for a third, the new charge is typically charged as a felony, regardless of the BAC level involved or the circumstances of the offense.

A DUI within fifteen years of a previous felony DUI is treated as a new felony, regardless of the time between offenses. Idaho’s lookback period for this scenario is significantly longer than for standard DUI escalation, reflecting the legislature’s intent to treat repeat felony DUI offenders with heightened severity.

A second excessive DUI within five years triggers felony status. An excessive DUI in Idaho involves a BAC of 0.16% or higher, which is double the standard legal limit. A second offense at that level within a five-year period is charged as a felony.

An aggravated DUI is charged as a felony regardless of prior history if the offense caused serious bodily injury to another person. This category can arise from a single incident and does not require any prior DUI convictions.

Penalties for a Felony DUI Conviction in Idaho

A felony DUI conviction in Idaho carries serious criminal penalties, including:

  • A mandatory minimum of 30 days in jail, with a maximum sentence of up to 10 years in the Idaho Department of Correction
  • Fines of up to $5,000, not including court costs, surcharges, and additional fees
  • Driver’s license suspension, with reinstatement conditioned on completing requirements such as installing an ignition interlock device

Beyond these penalties, a felony conviction can have long-term consequences that extend well beyond the sentence itself. Individuals may permanently lose their right to possess firearms under federal law, carry a criminal record that is visible to employers and landlords, face denial or revocation of professional licenses in fields like healthcare or finance, encounter immigration consequences if they are not U.S. citizens, and receive harsher treatment in any future criminal proceedings.

How a Boise Felony DUI Lawyer Can Help

A felony DUI charge is not a situation where waiting to see how things develop is a viable approach. The earlier a defense attorney is involved, the more opportunities there may be for defense options.

Martens Law Office helps those accused of felony DUI by:

  • Conducting a thorough independent investigation of the arrest
  • Reviewing the lawfulness of the traffic stop
  • Analyzing the administration and reliability of field sobriety tests
  • Scrutinizing the calibration and maintenance records of any breath testing equipment used
  • Evaluating the collection, handling, and chain of custody of any blood samples submitted for testing. 
  • If constitutional violations occurred during the stop or arrest, a motion to suppress the resulting evidence can significantly weaken the prosecution’s case or result in dismissal.

We also evaluate every available negotiation option. Depending on the facts of your case and your prior history, a reduction to a lesser charge, a deferred sentence, or an alternative sentencing arrangement may be achievable. We pursue every avenue that serves your interests while preparing fully for trial if that is the strongest path forward.

What to Do After Being Charged With a Felony DUI in Boise

The steps you take immediately after a felony DUI arrest can significantly affect your case. Here is what we recommend:

  1. Do not make statements to law enforcement beyond basic identifying information. Invoke your right to remain silent and your right to an attorney.
  2. Write down everything you remember about the stop, the arrest, and any testing that occurred while the details are still fresh.
  3. Gather any evidence that may be relevant, including receipts, surveillance footage, witness contact information, or any documentation related to the events of that evening.
  4. Do not discuss the case with anyone other than your attorney, including on social media.
  5. Contact Martens Law Office at (208) 344-0994 as soon as possible.

Our Felony DUI Defense Strategy in Idaho

At Martens Law Office, our defense strategy starts with a close examination of the traffic stop. Law enforcement must have reasonable, articulable suspicion to initiate a stop. If that legal standard is not met, any evidence obtained afterward may be suppressed. We carefully review the officer’s report to determine whether the stated observations actually justify the stop.

Next, we evaluate the field sobriety tests. These tests must follow standardized procedures, but officers often deviate from required protocols. When tests are administered incorrectly, the results can be unreliable and subject to challenge.

We also analyze chemical testing evidence. For breath tests, we review calibration records, maintenance history, and operator certification to identify potential issues. In blood draw cases, we examine how the sample was collected, stored, and handled by the laboratory to uncover any irregularities that could affect accuracy.

Finally, we assess any prior convictions used to elevate the charge to a felony. If a prior conviction was obtained without a valid waiver of constitutional rights or contains legal defects, challenging it may impact the felony classification itself.

Why Clients Choose Our Boise Felony DUI Defense Attorneys

Clients facing felony DUI charges choose Martens Law Office because we bring genuine commitment and focused criminal defense experience to every case we handle. We understand that a felony DUI charge is not just a legal problem. It is a disruption that affects your family, your career, and your everyday life. 

We provide direct, honest communication throughout the process so you always know where your case stands and what your realistic options are. We do not make promises about outcomes, but we do promise to examine every angle of your defense, pursue every available avenue for a favorable resolution, and stand by you through every stage of the proceedings.

A felony DUI charge does not have to define your future. Contact Martens Law Office at (208) 344-0994 to schedule your free consultation with a Boise felony DUI attorney today.

Feel free to reach out and speak with our experienced team of professionals who are here to provide you with expert guidance.
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