"The production, distribution, and abuse of illicit drugs pose a serious threat to Kansas. Dodge City, Garden City, Liberal, Kansas City, Topeka, and Wichita are drug distribution centers in the state and also serve as transit areas for drugs being transported to other states. Mexican criminal groups are the dominant transporters and distributors of illicit drugs in Kansas. Local independent dealers, street gangs, and outlaw motorcycle gangs also distribute drugs in the state. Methamphetamine is a principal drug threat to Kansas, primarily because of the drugs ready availability as well as the violence and environmental harm that often result from its production and abuse."
NDIC State Drug Threat Assessments: http://www.usdoj.gov/ndic/topics/states.htm