Almost 13 percent of individuals admitted for substance abuse rehabilitation in Missouri are 12 to 20 years old. More than 60 percent are males. According to the National Substance Abuse Index, Mexican drug trafficking groups run bulk of the distribution of illegal substances such as meth, marijuana, heroin and cocaine in the state. [caption id="attachment_286" align="alignleft" width="300" caption="State of Missouri"][/caption] Juvenile Justice The  Division of Youth Services of the Missouri Department of Social Services oversees the treatment and care of troubled teens. ...