In Kansas, being pulled over with marijuana in your system can trigger a full DUI arrest, regardless of whether you possess a medical marijuana card from another state. Because THC affects individuals differently and persists in the body long after impairment fades, these cases often hinge on field sobriety tests and officer testimony rather than objective data. Jonathan W. McConnell, founding attorney at the McConnell Law Firm, notes that the lack of a simple roadside test makes these cases significantly more nuanced than standard alcohol-related stops.

Penalties escalate rapidly with each conviction under state statute. A first-time offense is a class B misdemeanor punishable by up to six months in jail and fines up to $1,000. By the third offense, charges can escalate to a Level 6 nonperson felony, carrying potential prison sentences ranging from 17 to 46 months. Subsequent offenses maintain this felony classification, with license suspensions and mandatory ignition interlock device requirements becoming increasingly severe.