About
Thomas M. Petersen is the Managing Partner of Petersen Criminal Defense Law and has defended clients in criminal matters across Nebraska since 1995. His practice encompasses DUI, drug offenses, white-collar crimes, and complex federal litigation, with over 80% of his legal work devoted to trial advocacy.
Petersen earned his Juris Doctor degree, cum laude, from the Creighton University School of Law in Omaha. He completed his undergraduate studies in political science at Eastern Washington University, graduating with honors in 1990. His academic excellence laid the groundwork for a career dedicated to high-level criminal defense.
Before founding his firm, Petersen worked under established attorneys in Idaho and Nebraska, gaining hands-on experience in litigation and courtroom procedures. His aggressive motion practice and attention to constitutional rights have led to numerous dismissals and reduced charges for his clients.
Petersen is nationally recognized for his DUI defense work and was named one of the Top 50 defense attorneys in Nebraska by the National Advocacy for DUI Defense. His reputation stems from landmark case victories, including suppressions of evidence and acquittals in serious firearm, drug, and sex offense trials.
Licensed in both Idaho and Nebraska, Petersen represents clients in state and federal courts, including the U.S. District Courts for both regions. His approach combines meticulous legal planning with relentless advocacy, ensuring every case receives the strategic focus it deserves.
Thomas M. Petersen remains a trusted advocate for individuals navigating the criminal justice system. Through consistent litigation success and client-centered representation, he remains a formidable force in defending the rights and freedoms of the accused throughout Nebraska.
Law Office Affiliations
- Managing Partner, Petersen Criminal Defense Law
- Member, National Advocacy for DUI Defense
Licensed State
- Idaho
- Nebraska
Education
- Creighton University School of Law
Juris Doctor (JD) - Eastern Washington University
Bachelor of Arts (BA)
Awards & Badges

- Child Abuse
- Domestic Violence
- Drug Crime
- DUI and DWI
- Federal Crime
- Sex Crime