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About me

Kevin Trombold has been defending people just like you for nearly twenty years. As a public defender and in his thriving private practice, he has effectively represented thousands of people charged with DUI, Domestic Violence and other crimes. He is highly rated by former clients, who praise his fierce determination in getting their charges reduced and his warm, knowledgeable courtside manner. Kevin is also well respected by the judges and prosecutors he works with across the Puget Sound for his expertise in DUI law, a complex area involving forensic science. 

  One rare asset Kevin brings to the table is the time he spent honing his trial and negotiation skills as a public defender. While private criminal defense attorneys in Washington typically go to trial just a few times a year, Kevin took several hundred cases to trial in his nine years with the Public Defender Association of King County.

Only a handful of Seattle-based criminal defense attorneys have Kevin’s level of trial experience. It molded him into a seasoned attorney who is completely at ease before jurors and judges and also skilled at vigorously cross-examining police officers and expert witnesses. Because he has won so many not guilty verdicts before juries, prosecutors in Washington know he is not bluffing when he says he will take a case to trial if he can’t get the deal his client deserves.


Languages spoken: Spanish

Photos and videos

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Practice areas


  1. DUI & DWI: 60%
    24 years, 900 cases
  2. Domestic Violence: 20%
    24 years, 1 thousand cases
  3. Criminal Defense: 20%
    24 years, 3 thousand cases



Fixed (sometimes), Retainer (sometimes), Free consultation (60 minutes)

Payment types:

Cash, Check, Credit card

Attorney endorsements

33 total 

Are you an attorney? Endorse this lawyer

  • Jan Phillip Olson

    Kevin is a lawyer I go to for complex DUI questions, such as the latest science involved with breath testing equipment. He is a master at motion practice, and is very well respected by local judges. I have seen him get incredible results for his clients. I heartily endorse him.


    Jan Olson Child abuse Attorney
    Relationship: Fellow lawyer in community

  • Joseph A Campagna

    I have known Kevin for years, and can endorse him with full confidence. Even though Kevin is already an excellent attorney, he still takes time to work on his craft, to find new and creative ways to represent his clients.


    Joseph Campagna Litigation Attorney
    Relationship: Fellow lawyer in community


We have not found any instances of professional misconduct for this lawyer.
Avvo contributions
Legal answers
Award nameGrantorDate granted
AV RatedMartindale-Hubbell2015
AV RatedMartindale-Hubbell2014
AV RatedMartindale-Hubbell2013
AV RatedMartindale-Hubbell2012
Rising Star - NominatedSuper Lawyers Magazine2003
Certificate of Jury ServiceN/A2000
Best Tackler on My High School Football TeamMercer Island Football Team1983
Work experience
TitleCompany nameDuration
Trial Attorney PrincipalThe Law Offices of Kevin Trombold2002 - Present
Trial AttorneyPublic Defender Association1993 - 2002
Association namePosition nameDuration
Tacoma Pierce County Bar AssociationMember2011 - Present
Washington Foundation for Criminal JusticeMember2008 - Present
National College of DUI DefenseMember2002 - Present
National Association of Criminal Defense LawyersMember2002 - Present
Washington State Bar AssociationMember1994 - Present
Washington Association of Criminal Defense AttorneysMember1993 - Present
Washington Defender AssociationMember1993 - Present
Legal cases
Case nameOutcome
State v. Ahmach, Sanafim, et al. #C00627921Suppression of every breath test in King County
City of Seattle v. SCReduction to Negligent Driving First Degree
See all legal cases 
Publication nameTitleDate
Understanding DUI Scientific Evidence, Aspatore PressOut With The Old, In With The New: A Historical Review Of The Future Of Breath Testing With The Draeger2011
Defense Magazine - Washington Association of Criminal Defense LawyersFord Pinto or DataMaster - Booze, Cars and Government Gadgets2007
National College For DUI Defense WebsiteVirtual Forensic Library2007
Washington DUI CenterDubowski's Absorption, Distribution, Elimination of Alcohol2006
Washington DUI CenterEssential DUI Science Articles2005
Washington DUI CenterDUI Science Article Library2005
School nameMajorDegreeGraduated
National College For DUI DefenseDUIN/A2003
National Institute For Trial AdvocacyCriminal and Civil TrialsN/A1994
New College of California School of LawLawJD - Juris Doctor1992
University of WashingtonPolitical Science/Environmental ScienceBA - Bachelor of Arts1987
Speaking engagements
Conference nameTitleDate
Defending DUI's SeminarDOL Hearings2010
Challenging Bad Science: Putting the NAS Report to WorkOverview of the NAS Report (co-speaker)2010
Defending DUIsThe Science of Breath Testing2008
Public Defenders - DUI DefenseHistory of Breath Testing2007
DUI DefenseThe History of Breath Testing2007
Breath Testing HistoryHistory of Breath Testing2007
Field Sobriety TestsField Sobriety Testing - Horizontal Gaze Nystagmus2006
DUI DefenseScientific Articles for Defense Attorneys2006
Defending DUIsThe Science of Breath Testing2006
Basic Criminal DefenseDiscovery of Prosecution Evidence2005