What Is the Difference Between DUI and DWI?

Key Takeaways

• In Idaho, DUI and DWI mean the same crime, because the state uses the legal term Driving Under the Influence (DUI) under Idaho Code § 18-8004 and does not create separate DWI charges.

• A person can be arrested for DUI even if the vehicle is not moving, because being in actual physical control of a motor vehicle while intoxicated is enough for a DUI charge.

• DUI penalties increase with repeat offenses, starting with possible jail time, fines, and license suspension for a first offense and reaching felony DUI with prison exposure for a third offense within 10 years.

• Drivers may lose their license quickly after a DUI arrest, because Idaho’s administrative license suspension and implied consent laws allow the state to suspend driving privileges after a failed or refused chemical test.

Questions often come up about what the difference is between DUI and DWI, especially after an arrest for drunk driving or impaired driving. The difference between DUI and DWI depends on state laws, because many states use both legal terms, while others treat them as the same crime. In Idaho, the wording can confuse drivers who hear both phrases after a traffic stop.

Lovell Law DUI & Criminal Defense Lawyers, helps you understand the difference between a DUI and other related charges, protect your driver's license, and respond quickly after a DUI offense. Our Idaho criminal defense attorneys explain your legal options clearly and provide a free consultation to discuss your case and possible defense strategies.

Does Idaho Use the Term DUI or DWI?

In Idaho, the law uses specific language when describing intoxicated driving offenses. While many states separate DUI and DWI into separate charges, Idaho does not. Understanding how Idaho defines these legal terms helps you determine whether there is a true difference between DUI and DWI in this state.

Idaho Primarily Uses “DUI”

Idaho law primarily uses the term Driving Under the Influence (DUI). This legal definition applies when a person is operating a vehicle or sitting in the driver's seat of a motor vehicle while intoxicated. The DUI offense covers alcohol, illegal drugs, and even prescription medication if the person’s impaired condition affects safe driving.

DWI Is Not a Separate Charge in Idaho

In Idaho, DWI refers to the same crime as DUI. Idaho does not create separate charges for DUI and DWI. While DWI laws may exist in other states, Idaho treats DUI and DWI as the same offense under one statute.

What Is DUI Under Idaho Law?

Under Idaho Code § 18-8004, DUI means driving under the influence of alcohol, drugs, or intoxicating substances while operating a vehicle or being in actual physical control of a motor vehicle. A person does not have to be moving; simply being in control of a car while intoxicated can lead to arrest. This law covers driving while impaired and driving while intoxicated in one offense.

Blood Alcohol Concentration (BAC) Limits

The legal limit for drivers 21 and older is a blood alcohol concentration of 0.08%. For commercial drivers, the limit is 0.04%. For drivers under 21, the limit is 0.02% under Idaho Code § 18-8004(1)(e).

Blood alcohol content (BAC) is measured through a chemical test, such as a breath, blood, or urine test. If your BAC meets or exceeds the legal limit, you may face a DUI conviction. Even if your blood alcohol content is lower, you can still be charged if your ability-impaired condition shows signs of intoxicated driving.

DUI vs. DWI: Why the Confusion?

Many states use both DUI and DWI in their laws. Some states treat DUI and DWI as different offenses with different penalties. That is why people often ask about the difference between DUI and DWI when they move between states.

Other States Use Both Terms

In most states, DUI and DWI may refer to separate charges that are defined differently under each state’s specific laws, which means the legal consequences can vary depending on how the offense is classified. Some states treat driving while impaired as a less serious offense than driving while intoxicated, while others use the terms interchangeably but still assign different penalties based on blood alcohol concentration or other factors.

This difference in how state laws are written often creates confusion for drivers who move between states or try to compare how DUI and DWI are handled across the country.

In Idaho, DUI Covers All Intoxicated Driving

In Idaho, DUI covers all forms of intoxicated driving, including alcohol, illegal drugs, and prescription drugs. There is no difference between DUI and DWI under Idaho law. It is the same crime and carries the same penalties.

DUI Penalties in Idaho

DUI penalties in Idaho depend on whether it is a first, second, or third offense. Aggravating factors, such as high BAC or prior convictions, can increase jail time and fines. A DUI conviction can also lead to license suspension and other restrictions.

First DUI Offense

A first-time offense can result in up to 6 months in jail and a fine of up to $1,000. The court will also order a license suspension and may require community service. An ignition interlock device may be required before restoring limited driving privileges.

Second DUI (Within 10 Years)

A second DUI offense within 10 years carries increased jail time and higher fines. The driver's license may be suspended for a longer period. Courts often require an ignition interlock device before full driving privileges return.

Third DUI (Felony DUI)

A third DUI within 10 years is a felony DUI. This can lead to prison time, substantial fines, and extended license revocation. A felony DUI conviction can affect employment and future opportunities for up to five years or longer.

Aggravated DUI in Idaho

Aggravated DUI involves serious injury caused by driving under the influence. This offense carries severe penalties and long-term consequences. The legal process becomes more complex when someone is harmed.

Aggravated DUI

Under Idaho Code § 18-8006, aggravated DUI occurs when a person causes great bodily harm, permanent disability, or permanent disfigurement while driving drunk. This offense can result in significant prison time and large fines. A conviction may permanently affect your record and driving privileges.

Administrative License Suspension in Idaho

In addition to criminal penalties, Idaho imposes administrative license suspension after certain DUI arrests. This process happens quickly after a failed chemical test. It affects your driving privileges even before a court trial.

Automatic Suspension for BAC 0.08% or Higher

If your BAC is 0.08% or higher, you face automatic license suspension. A first offense typically results in a 90-day suspension. Refusal to take a chemical test can lead to a one-year suspension.

Implied Consent Law

Under Idaho Code § 18-8002, drivers give implied consent to a chemical test when operating a vehicle. If you refuse to take a test, the state can suspend your driver's license. This applies even if you believe medical conditions affected the test results.

Frequently Asked Questions (FAQs)

Is there a real difference between DUI and DWI in Idaho?

No. In Idaho, DUI and DWI mean the same crime.

Can I be arrested if I was not driving but sitting in the driver's seat?

Yes. Being in control of a vehicle while intoxicated can lead to arrest.

Will I lose my driving privileges after a DUI arrest?

Yes. License suspension can happen through both court penalties and administrative action.

Can I be charged with DUI/DWI for drunk driving if I fail a field sobriety test?

Yes. Failing a field sobriety test can give officers probable cause to file a DUI/DWI or DWI charge for impaired driving.

Does blood alcohol content (BAC) always determine a DUI charge?

No. Even if your blood alcohol content (BAC) is below the legal limit, you can still face a DUI charge if you appear impaired.

Are commercial drivers held to different DUI standards?

Yes. Commercial drivers face stricter BAC limits and may lose their commercial privileges after a DUI/DWI offense.

Is impaired driving treated the same as drunk driving in Idaho?

Yes. Idaho law treats impaired driving from alcohol or drugs as the same DUI offense.

Contact Our Experienced Idaho DUI Lawyer for a Free Consultation

If you were arrested for DUI or DWI in Idaho, you need clear answers about your rights and your options. A DUI or DWI conviction can lead to jail time, fines, ignition interlock requirements, and long-term damage to your record.

Lovell Law DUI & Criminal Defense Lawyers, understands Idaho DUI laws and how prosecutors build cases based on field sobriety test results, chemical test results, and police reports. Our criminal defense lawyer works to challenge probable cause, question evidence, and protect your driving privileges.

We offer a free consultation so you can speak directly with an experienced criminal defense attorney about your case. Contact our office today to protect your driver's license and begin building a strong defense.