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About Karyn T. Missimer
Attorney Karyn Missimer is regarded by her colleagues and judges as thorough and detail-oriented. Attorney Missimer graduated from Marquette University Law School in 2006, where she received the highest class grade in Legal Research and Writing. She also earned the distinction of being the only first-year law student to ever argue onto Moot Court. Further, Attorney Karyn Missimer received the Pro Bono Society Honor for dedicating over 120 hours of her time to nonprofit legal organizations. Attorney Missimer’s practice focuses on DUI/criminal defense at both the trial and appellate levels. She has been a member of the Wisconsin Association of Criminal Defense Attorneys since 2006 -and- a member (since 2007), and a sustaining member (since 2014) of the National College for DUI Defense (“NCDD”). DUI Defense Experience: For years, Attorney Missimer’s practice has focused almost exclusively on DUI defense. She has attended the NCDD’s annual Mastering Scientific Evidence seminars, thereby sharpening her ability to challenge breath and blood tests. She has also attended the NCDD’s annual Summer Sessions in Boston, Massachusetts. The Summer Sessions cover all aspects of jury trial work, including, persuasion techniques, directing and cross-examining expert witnesses, and effectively challenging field sobriety tests. Attorney Missimer is Field Sobriety Test Certified; and she graduated from the American Chemical Society’s Hands-On Forensic Blood Testing Course where she learned the ins and outs of the gas chromatograph used for blood testing, as well as how to successfully defend against it. Attorney Missimer has had numerous DUI trials and is very well-versed in this area of law. Criminal Law Experience: Before law school, Attorney Karyn Missimer worked as a criminal law paralegal for six years. In law school, she interned with the Milwaukee Trial Division of the Wisconsin State Public Defender’s Office. During that time, she represented indigent clients in all aspects of misdemeanor and felony matters. Criminal defense has been a major part of Attorney Missimer’s practice since 2006. For specific examples of Attorney Karyn Missimer’s successes, please go to Avvo.com.
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Virtual Forensic Library

NCDD members have access to a comprehensive forensic library that provides invaluable information to be used when defending clients charged with DUI.
This library includes scientific articles on drug and alcohol intoxication, toxicology and pharmacology, methods of testing for blood alcohol content, field sobriety testing, potential errors that may occur during testing, accident reconstruction, expert testimony, and evidentiary rules. This valuable information can ensure that you provide a high quality defense to clients charged with DUI based on the circumstances of their case and the laws in their state.
FROM OUR BLOG
Ethics Task Force Blog
04/15/2025
Written by Jonathan Dichter The Heart of Client Care: Moving Beyond Case Management In the legal profession, we often talk about "case management" - the systems and processes that keep our cases moving efficiently. But what about *client care*? True client care goes beyond deadlines and filings; it's about treating clients as *people*-scared, uncertain, and in need of guidance. And when done...
Personal Contact: Using the Officer's Observations Against Them
03/10/2025
Written by Charles GoodwinEdited by Michelle Behan and Steven Hernandez The typical DUI investigation has three phases. It begins with the vehicle in motion and focuses on driving patterns that officers are trained might indicate impairment. Next is personal contact, where the officer will observe physical manifestations that are also purportedly correlated with alcohol ingestion and impairment. Finally, the officer will...