BUI Attorney in Olathe

A Former Prosecutor Defending BUI Charges in Johnson County

A boating under the influence charge in Kansas isn’t a variation of DUI with a nautical backdrop. It’s a separate criminal offense under K.S.A. 32-1131, enforced by a different agency, tested with different methods, and prosecuted along its own procedural path. I’m John Harvell. Before I became a criminal defense attorney, I was a prosecutor, and that background shapes how I approach every BUI case I take in Olathe and across Johnson County. I know how the state builds these cases because I built cases like them.

My firm represents clients charged with BUI at every stage, from the night of the arrest through resolution in Johnson County District Court or Olathe Municipal Court. With nearly 30 years of criminal defense experience and a free consultation available, there’s no cost to talking through what happened.

Charged with BUI in Olathe or Johnson County? Call me directly at (888) 879-7087 to schedule your free consultation.

What Kansas BUI Law Prohibits

K.S.A. 32-1131 makes it unlawful to operate or attempt to operate any vessel in Kansas with a blood alcohol concentration (BAC) of .08 or greater if you’re 21 or older, or .02 or greater if you’re under 21. The statute also reaches impairment that can’t be captured by a number: if alcohol, drugs, or a combination of both renders you incapable of safely operating the vessel, you can be charged regardless of your BAC reading. A prescription for the substance involved isn’t a defense to a drug-based BUI charge.

One detail that surprises many people: it’s legal to possess and consume alcohol on a boat in Kansas. The prohibition applies only to the person operating the vessel. That distinction matters, but it doesn’t protect an operator who’s been drinking.

Kansas implied consent rules extend to the water. Operating a vessel in Kansas means you’ve already consented to a BAC or drug test if a Kansas Department of Wildlife and Parks (KDWP) officer requests one. Refusing that test results in a three-month loss of boating privileges. A BAC reading taken within three hours of operation can be used as evidence of your BAC at the time you were on the water.

BUI Penalties Under Kansas Law

The consequences of a BUI conviction extend well beyond a single day in court. Under K.S.A. 32-1131, a first conviction is a misdemeanor carrying up to one year in jail, a fine between $100 and $500, or both. A second or subsequent conviction carries a mandatory minimum of 90 days in jail up to one year, and the court may again impose a fine in that same range.

Every person convicted of a BUI must complete a KDWP-approved boater safety education course before returning to the water. For operators under 21 whose BAC falls between .02 and .08, the consequence is a boating privilege suspension: 30 days for a first occurrence, 90 days for a second or subsequent one.

One meaningful difference from a DUI conviction: a BUI doesn’t automatically suspend your driver’s license. The penalties are boating-specific. That said, a BUI conviction goes on your criminal record and can surface in employment background checks and professional licensing reviews.

How BUI Differs from Kansas DUI Stops

KDWP officers, not local police or the Kansas Highway Patrol, make BUI arrests on Kansas waterways. That difference runs through the entire case: the arresting agency, arrest procedures, chain of custody for chemical testing, and the paperwork trail all look different from a standard DUI stop. A KDWP officer can board your vessel for a routine safety inspection without any suspicion of impairment, and an investigation into your condition can follow once the officer is aboard. People who spend time on Hillsdale Lake south of Olathe or on the lakes managed throughout Johnson County encounter this enforcement regularly.

On-Water Field Sobriety Tests

The field sobriety tests used on the water are different from those administered roadside. KDWP officers commonly use the Horizontal Gaze Nystagmus (HGN) test, which tracks involuntary eye movement, and the finger-to-nose test (FTN), which requires the subject to tilt their head back, close their eyes, and touch their nose with an index finger. Performing those tests on a rocking vessel introduces balance and stability variables that have nothing to do with alcohol. Wind, sun exposure, dehydration, and wave motion can all affect how impairment appears to an officer and how your body responds. Breathalyzer and blood test procedures on the water carry their own protocol requirements, and calibration records, timing, and chain-of-custody handling are all reviewable. Deviations from required procedures can be challenged.

My Defense Approach for Olathe BUI Cases

Because I spent years as a prosecutor, I understand the evidentiary standards the state relies on and where those standards become difficult to meet. In a BUI case, that means looking closely at whether the KDWP officer followed correct boarding and stop procedures, whether the on-water sobriety tests were administered under conditions that support reliable results, and whether the chemical testing met all required protocols from calibration through chain of custody.

I handle each case personally. Nothing is delegated to associates. When I take a BUI case in Johnson County, I review the officer’s reports, request body camera footage, examine vessel inspection records, and assess the chemical test logs. Some of that evidence is time-sensitive, which is why reaching out early matters. I work toward outcomes that fit the facts: reduced charges, dismissals, plea agreements, or acquittals, depending on what the evidence supports.

Get a Free Consultation on Your BUI Charge

If you’ve been charged with boating under the influence in Olathe or anywhere in Johnson County, speaking with an attorney who understands both sides of these cases can be the right first step. Call The Law Office of John Harvell at (888) 879-7087 or reach out through the contact form to schedule your free consultation.