Aggravated DUI Attorney in Lake Stevens

High BAC Results, Test Refusals, Priors & DUI Accidents

Aggravated DUI is a general term used to describe a DUI case where specific aggravating factors, like a high blood alcohol concentration, are present. Those factors can trigger longer jail minimums, extended license revocation, mandatory ignition interlock requirements, and, in some cases, felony exposure under RCW 46.61.5055 and RCW 46.61.502(6). At DUIHeroes, we handle DUI defense exclusively throughout Snohomish County, including Lake Stevens, and every attorney on our team practices DUI law only. Whether your case involves a high BAC, a refused test, prior offenses, or an accident, our approach is built around the technical and strategic demands these cases require.

What Makes a DUI “Aggravated” in Washington State

Washington doesn’t classify aggravated DUI as a separate statutory offense. Instead, specific factors trigger enhanced penalty tiers under RCW 46.61.5055, and at the felony level, under RCW 46.61.502(6). These factors raise the floor on minimum jail time, fines, and license consequences that apply to your case.

The most common aggravating factors include:

• BAC at or above 0.15 at the time of arrest
• Refusal of a breath or blood test, which triggers the same enhanced tier as a high BAC
• Prior DUI convictions within seven years
• A passenger under 16 in the vehicle at the time of the stop
• Involvement in an accident causing injury

Three or more prior impaired-driving offenses within 15 years, or a prior conviction for vehicular assault or vehicular homicide while impaired, elevate the charge to a Class B felony carrying up to 10 years in prison and $20,000 in fines. This 15-year lookback took effect January 1, 2026 (up from the previous 10-year window), meaning older convictions that would once have "aged out" can now count toward a felony charge.

Penalties Under RCW 46.61.5055

Washington’s DUI sentencing structure builds in tiers that compound with each aggravating factor and each prior offense. The figures below are statutory minimums; actual costs with assessments run significantly higher.

• First offense, BAC below 0.15: Minimum 24 hours jail or 15 days electronic home monitoring, fines starting around $990.50, 90-day license suspension
• First offense, BAC 0.15 or higher: Minimum 48 hours jail or 30 days electronic home monitoring, fines starting around $1,245.50, one-year license revocation
• First offense, test refusal: Same jail and fine minimums as above, but a two-year license revocation instead of one year
• Second offense within 7 years, BAC below 0.15: Minimum 30 days jail, fines starting around $1,245.50, two-year license revocation
• Second offense, BAC 0.15 or higher: Minimum 45 days jail, fines starting around $1,670.50, extended revocation
• Third offense (two prior offenses within 7 years): Minimum 90 days jail, fines starting around $2,095, three-year license revocation
• Fourth offense (three or more prior offenses within 15 years): As of January 1, 2026, this is charged as a Class B felony, carrying up to 10 years in prison and $20,000 in fines, and moves to Snohomish County Superior Court rather than district or municipal court

An ignition interlock device is required after any DUI conviction in Washington. A conviction stays on your record permanently and can’t be vacated or expunged. A Lake Stevens DUI arrest also triggers a separate Department of Licensing administrative hearing with a short deadline to request review. Missing that deadline means automatic license suspension regardless of what happens in criminal court.

Where your case is heard depends on who made the arrest. Lake Stevens Police arrests are typically heard at Marysville Municipal Court. Cases involving the Snohomish County Sheriff or Washington State Patrol may be routed to Evergreen District Court or Cascade District Court in Arlington. Felony DUI cases go to Snohomish County Superior Court in Everett. Collateral consequences extend beyond the courtroom: SR-22 insurance requirements, professional license jeopardy, and travel restrictions to Canada are common for those convicted.

How We Defend Aggravated DUI Charges

Aggravated DUI cases turn on technical details. High-BAC charges, test refusal claims, and accident-related cases each require a defense that goes well beyond general courtroom advocacy. Our founding attorney, Jonathan Dichter, has completed the NHTSA Standardized Field Sobriety Testing student course and the Advanced Roadside Impairment Driver Enforcement course. He’s also a Qualified Instructor for the NHTSA/IACP DWI Detection and Standardized Field Sobriety Testing course, meaning he teaches the same program used to train Washington arresting officers. That training directly informs how we challenge the state’s evidence.

Our team includes two former prosecutors who know how the state builds an aggravated DUI case, which arguments carry weight, and where the charging narrative may have weak points we can target.

Defense strategies in these cases may involve:

• Challenging breathalyzer administration and calibration for potential suppression of BAC evidence
• Independent blood sample analysis and toxicologist testimony in high-BAC or accident cases
• Review of dashcam and bodycam footage to evaluate whether the stop and sobriety testing followed proper procedure
• Coordinated defense across both criminal court and the DOL hearing, since actions in one proceeding can affect the other

Jonathan Dichter is the Washington State Delegate for the National College for DUI Defense and serves on multiple NCDD committees. He authored Innovative DUI Trial Tools (7th ed., James Publishing), a national strategy guide used by DUI defense attorneys across the country. We intentionally limit our caseload so each client can receive focused attention, and our secure client portal keeps you connected to your legal team in real time.

Why Lake Stevens Residents Choose DUIHeroes

We handle DUI defense exclusively. That focus means our knowledge of Washington DUI law, the science behind field sobriety and breath testing, and the local court system is grounded in the daily work our team does.

Recognition & Results

Jonathan Dichter was selected for Washington Super Lawyers every year from 2023 through 2026 and has earned Elite Lawyer recognition for DUI defense every year since 2020. He’s a member of The National Trial Lawyers Top 100 Criminal Defense Trial Lawyers. DUIHeroes received the Seattle Times 2025 Best in the PNW Gold award for DUI/DWI Law, plus a Silver award in 2024 and 2026. Thousands of clients across Washington have trusted us with their cases.

Resources for Every Client

Clients receive a free copy of The DUI Survival Guide, written by Jonathan Dichter to help defendants understand Washington’s DUI process from arrest through resolution. Interpreter services are available in most languages so nothing gets lost along the way.

Contact an Aggravated DUI Lawyer in Lake Stevens Today

The DOL hearing deadline is short, and the window to build a strong defense closes fast. If you’re facing an aggravated DUI charge in Lake Stevens or anywhere in Snohomish County, don’t wait. We answer calls 24 hours a day, seven days a week.