Are there special laws that apply to people 18 or over who sell drugs to people under 18?

Yes. The law says a person who sells, gives, or offers any prohibited substance to a minor is guilty of a class 2 felony. A person who employs or uses a minor to sell or transfer any prohibited substance may also be guilty of a class 2 felony. If convicted, the person will not be eligible for suspension of sentence, probation, pardon or release on any basis until the sentence imposed by the court has been served. Manufacture of methamphetamine under circumstances that cause physical injury to a minor under 15 years of age is a dangerous crime against children, also with a hefty mandatory prison sentence. (ARS