Thomas Hagen

Attorney Profile

Top Rated Criminal Defense Attorney in Mankato, MN

Rosengren, Kohlmeyer & Hagen, Law Office Chtd.
 | 150 St. Andrews Ct, Suite 110
Mankato, MN 56001
Phone: 866-326-5315
Selected to Rising Stars: 2012 - 2017
Licensed Since: 2007
Practice Areas:
  • Criminal Defense (70%),
  • Criminal Defense: DUI/DWI (30%)
Attorney Profile

Attorney Thomas Hagen is a partner with the prestigious Roko Law Office in Mankato, Minnesota, where he focuses his practice on criminal defense and workers' compensation law. Serving residents throughout Minnesota, Mr. Hagen devotes his time and resources to helping his clients protect their rights and freedom against all types of serious criminal charges, including DUI and DWI, sexual offenses, drug crimes, and more. Additionally, he has helped countless injured workers secure their rightful compensation and benefits after suffering a debilitating injury on the job.

Widely regarded as one of the region's top young attorneys, Mr. Hagen was named as a Top 100 DUI attorney by the National Advocacy for DUI Defense in 2014. Additionally, The National Trial Lawyers named him to its Top 100 trial lawyers list in 2014, and the American Society of Legal Advocates recognized him as one of the Top 40 Lawyers Under 40 in 2013.

Mr. Hagen received his undergraduate degree in political science and business law from Minnesota State University, Mankato, in 2004. Afterward, he attended Ohio Northern University Pettit College of Law, where he obtained his Juris Doctor in 2007. That same year, the Minnesota State Bar Association admitted him to practice, and Mr. Hagen honed his legal skills at another Mankato law firm before making partner at Roko Law Office.

Fully dedicated to his practice, Mr. Hagen is actively involved in many professional legal organizations. He is a member of The National College for DUI Defense, the Minnesota Association of Criminal Defense Lawyers, the American Bar Association and the Minnesota State Bar Association, among others.

An accomplished author, Mr. Hagen has published numerous articles on a variety of legal topics, and he wrote and published "Arrested for DWI in Minnesota," a book aimed at helping average citizens understand what to do when arrested for impaired driving.

Practice Areas
Lawyer Practice Area Pie Chart

Criminal Defense (70%): Criminal Law, Drug & Alcohol Violations, Felony, Sex Offenses

Criminal Defense: DUI/DWI (30%): DUI/DWI

Focus Areas

Criminal Defense: Criminal Law, Drug & Alcohol Violations, Felony, Sex Offenses

Criminal Defense: DUI/DWI: DUI/DWI


top-imageSelected to Rising Stars for 6 years

Rising Stars: 2012 - 2017

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About Thomas Hagen

Admitted: 2007, Minnesota

Professional Webpage:

Honors and Awards:

  • Rising Star, Minnesota Law & Politics Magazine 2012
  • Rising Star Minnesota Law & Politics Magazine, 2013
  • Top 40 Lawyers Under 40 American Society of Legal Advocates, 2013
  • Top 100 Trial Lawyers National Trial Lawyers, 2014
  • 10 Best American Institute of DUI/DWI Attorneys, 2014
  • Rising Star Law & Politics Magazine, 2014
  • Top 100 DUI Attorney NAFDD, 2014
  • Rising Star Law & Politics Magazine, 2015
  • Rising Star Law & Politics Magazine, 2016

Bar/Professional Activity:

  • National College for DUI Defense, Member, 2015
  • Minnesota Association for Justice, Member
  • Minnesota State Bar Association for Justice, Member
  • American Bar Association, Member
  • Minnesota State Bar Association, Member

Scholarly Lectures and Writings:

  • Author, “Arrested for DWI in Minnesota”

Verdicts and Settlements:

  • State v. T.H.
  • State v. T.G.
  • T.M v. Commissioner of Public Safety
  • State vs. A.W.
  • State vs. A.B.
  • State v. M.M


  • Interviewed by The New York Times, USA Today and Minneapolis Star Tribune
Find Me Online
Website -
Office Location for Thomas Hagen

150 St. Andrews Ct
Suite 110
Mankato, MN 56001

Phone: 866-326-5315


Thomas Hagen:

Last Updated: 4/13/2017

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