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Brian Leininger

Kansas DUI Defense Attorney Brian Leininger has handled over 2000 DUI cases and is ready and available to help you with your case. He has been practicing Kansas DUI law every working day since 1991.

In 2001 Brian formed his own law firm and has been defending those accused of DUI and other crimes since that time. As a knowledgeable DUI Attorney, he is a frequent speaker to lawyers' seminars on the defense of DUI cases and other topics. Even a first DUI conviction in Kansas means mandatory jail time, a high fine, a license suspension and higher insurance rates. Do not trust your case to a lawyer who primarily writes wills or handles divorces and only does a handful of DUI cases a year. Kansas DUI defense is what Brian Leininger does, every day.

Brian began his legal career as a Research Attorney for the Kansas Court of Appeals, where he honed his legal research skills. He moved on to become an Assistant District Attorney in Wyandotte County, Kansas and prosecuted cases ranging from traffic offenses to rapes, robberies and homicides. He was the head of the Traffic Unit for about three years, during which time he reviewed, filed and prosecuted well over 1000 DUI cases. He also served as a part-time city prosecutor for nearly four years. Brian knows the tricks of the prosecutor's trade and can use them to your advantage as an experienced DUI Defense Lawyer in Kansas.

Brian left the D.A.'s office to become General Counsel to the Kansas Highway Patrol. In nearly five years with the Patrol, he trained troopers and other officers around Kansas in the law of DUI and drug cases. Brian took advantage of the opportunity to complete extensive police training. He is certified to administer the Standardized Field Sobriety Tests and is trained in the use of the Intoxilyzer breath testing device. Brian is a graduate of the FBI National Law Institute and is one of only a few DUI lawyers in the United States to have successfully completed the training to become a Drug Recognition Expert (DRE). DREs are the officers called in to investigate when a driver is suspected of driving under the influence of a drug other than alcohol (DUID). If you hire Brian as your DUI Defense Lawyer, you can be fairly assured that your lawyer has had more DUI training than the officer who arrested you.


  • National College for DUI Defense
  • National Association of Criminal Defense Attorneys
  • President, Kansas Association of Criminal Defense Lawyers
  • Johnson County Bar Association
  • Fellow, Johnson County Bar Foundation
  • Former Johnson County Bar Foundation Board of Trustees
  • Wyandotte County Bar Association
  • NORML Legal Committee

Recent Blog Posts


  • Johnson County Doctor

    When I did my online search for a local DUI lawyer, Mr Leininger was one of the first names I found. He was the first lawyer to call me back. When I saw him in his office he sat down with me and explained the entire situation. He really put me at ease during a very stressful time. He and his staf...
  • College student

    Brian has helped me through this DUI process and I couldn't have chosen a better lawyer to represent me! He's great at communicating with his clients and his assistant, Katie, at the front desk is also very helpful. Brian made the process a lot easier and has a lot of experience with DUI cases. I...
  • Felony DUI dismissed just before trial

    My DUI was a felony because of prior convictions. The prosecutor made an offer that included a long period in jail. Brian announced he was ready for trial. A few hours before the trial was set to start the prosecutor emailed Brian and wrote, "OK, I'll blink first. I'll dismiss the DUI. I pled gui...

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