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What Happens If You Refuse a DUI Test in Idaho?

Posted by Ryan Black | Apr 18, 2025 | 0 Comments

What Happens If You Refuse a DUI Test in Idaho?

Facing a request for a breath, blood, or urine test during a DUI stop can be nerve‑wracking. In Idaho, you're presumed to have “given consent” to chemical testing by driving on the state's roads. If you refuse or fail to complete a requested test, you trigger a series of automatic penalties—some immediate, others that unfold over time. Understanding these consequences can help you make informed decisions and prepare a defense strategy.

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1. Idaho's “Implied Consent” Framework

Under Idaho Code § 18‑8002, anyone who drives or is in “actual physical control” of a vehicle in Idaho is deemed to have consented to chemical testing if a peace officer has reasonable grounds to believe they've violated DUI laws.

  • No attorney consultation: The statute expressly prohibits delaying the test to consult an attorney (§ 18‑8002(2)).

  • Scope of “evidentiary testing”: Includes breath, blood, and urine tests for alcohol concentration or intoxication from drugs (§ 18‑8002(9)).


2. Civil Penalty for Refusal

If you refuse or fail to complete the test after being informed of the consequences, Idaho law imposes an immediate $250 civil penalty18‑8002(3)(a)).

  • This fine is separate from any criminal DUI charges.

  • Payment must be made to the county justice or current expense fund.

  • Failure to pay within 30 days can turn the order into a court judgment, subject to collections and additional fees.


3. Driver's License Suspension

Refusing a test triggers an automatic suspension of your driving privileges—regardless of the criminal DUI case outcome:

  • First refusal: 1‑year absolute suspension (§ 18‑8002(3)(d); (4)(b)).

  • Second refusal within 10 years: 2‑year absolute suspension.

  • No driving of any kind during the absolute suspension period.


4. Mandatory Ignition Interlock Device (IID)

In addition to license suspension, you must install a state‑approved IID on all vehicles you operate, at your own expense (§ 18‑8002(3)(b); (4)(b)).

  • Duration: IID must remain installed for one year after the suspension ends.

  • The device records breath samples before the engine will start, ensuring you're sober each time you drive.


5. Administrative Hearing Rights

Idaho law offers an opportunity to contest the refusal:

  • You have 7 days from the date of refusal to request a hearing18‑8002(3)(c); (4)(c)).

  • The hearing must occur within 30 days (with one possible 30‑day extension).

  • Burden of proof: You must demonstrate why you didn't complete the test (e.g., medical emergency or civil‑rights violation).

  • If you don't request a hearing within 7 days, the court will sustain the penalty based solely on the officer's sworn statement (§ 18‑8002(4)(d)).


6. Restricted Permits via Problem‑Solving Courts

Idaho's problem‑solving courts (drug courts, mental health courts) provide an alternative in limited circumstances:

  • After serving at least 45 days of the absolute suspension, participants in “good standing” may apply for restricted noncommercial driving privileges18‑8002(3)(e); (4)(e)).

  • Conditions:

    • IID installation

    • Proof of financial responsibility (SR‑22 insurance)

  • Privileges are limited to travel for work, school, or treatment and can be revoked for non‑compliance.


7. Criminal vs. Administrative Sanctions

It's crucial to recognize that these administrative sanctions under § 18‑8002 are separate from any criminal DUI penalties (§ 18‑8002(5)). You may face:

  • Jail time and fines if convicted of DUI

  • Additional court costs and probation requirements

Both tracks proceed concurrently, meaning you can't avoid license suspension merely by beating the DUI criminal charge.


8. Long‑Term Implications of Refusal

Beyond immediate penalties, refusing a test can have ripple effects:

  • Insurance impact: Increased premiums or policy cancellation.

  • Employment hurdles: Difficulty with jobs requiring driving or background checks.

  • Record concerns: A refusal can be used as evidence of guilt in criminal proceedings.

Given that refusal offers little strategic benefit, it often complicates both administrative and criminal defenses.


9. How a DUI Attorney Can Help

Navigating a refusal case involves both administrative and criminal arenas. A knowledgeable Idaho DUI attorney can:

  • File and prepare your license‑hearing defense, challenging probable cause or procedural errors.

  • Negotiate with prosecutors to mitigate criminal charges or explore diversion programs.

  • Advise on IID relief petitions under § 18‑8002(12) if installation causes exceptional hardship.

Early legal guidance maximizes your chance to preserve driving privileges and minimize long‑term damage.


Conclusion

Refusing a DUI test in Idaho triggers a cascade of civil penalties, license suspensions, and mandatory ignition interlock requirements—all before a criminal court ever weighs in. Idaho Code § 18‑8002 makes clear that refusal carries no “do‑over” and often worsens your legal position. If you're facing a refusal scenario, act quickly: request your administrative hearing, gather evidence, and consult an experienced DUI attorney to protect your rights and your ability to drive.

About the Author

Ryan Black

Attorney, Partner

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