As a partner of Kohlmeyer Hagen Law Office Chtd., located in Mankato, Minnesota, Thomas Hagen has built his practice on personal service and attention to detail. Practicing exclusively in criminal defense and workers’ compensation, Mr. Hagen has successfully defended clients against allegations of sexual assault, DUI and DWI, and serious drug crimes.
Tom has been named a Rising Star by Minneapolis-St. Paul Magazine since every year since 2012. This prestigious award is limited to no more than 2.5% lawyers under the age of 40 in the State of Minnesota. Tom is a member of numerous professional associations including the American Bar Association, Minnesota State Bar and Minnesota Association for Justice. Having handled many high-profile cases, he has been interviewed by the New York Times, USA Today, as well as the Minneapolis Star Tribune. He has also been named a member of the Nation Trial Lawyers: Top 100, and has received the highest rating allowed by Avvo.com and has been awarded the clients choice award.

Mr. Hagen is also a published author. His book “Arrested for DWI in Minnesota” lays the foundation for a non-lawyer to survive after being charged with a DWI in Minnesota. It’s available on Amazon.com in both hard copy and Kindle edition.
During his free time, Tom enjoys bow hunting, fishing, and spending time with his wife and children. He also enjoys attending classic 80’s rock band concerts.

awards and recognitions

U.S. News and World Report Best Lawyers “Best Law Firm”
Tier – 2 Minneapolis

Super Lawyers – Rising Star
Award limited to no more than 2.5% of Minnesota Attorneys under 40
2012,  2013,  2014,  2015,  2016,  2017,  2018

Top 100 DUI Attorney

National College for DUI Defense

10 Best American Institute of DUI/DWI Attorneys


Top 100 Trial Lawyers
National Trial Lawyers

Top 40 Lawyers Under 40
American Society of Legal Advocates


Published works

Arrested for DWI in Minnesota


practice areas

  • Criminal Defense
  • DWI | DUI
  • Drug Charge
  • Internet Crimes
  • Sex Crimes
  • Solicitation
  • Assault
  • Felonies


Ohio Northern University – Claude W. Pettit College of Law

J.D. 2007

bar admissions

Minnesota – 2007


"This law firm is very experienced, very effective, and yet very personable when interacting with me throughout my nerve-wracking legal process. I’m completely satisfied with the outcome of my case. I would hire the Kohlmeyer and Hagen Law Firm again without hesitation. And, I have since recommended them to several friends and acquaintances."
- T.W.