Pot problems in Colorado schools increase with legalization - The Denver Post
"GRAND JUNCTION — In two years of work as an undercover officer with a drug task force, Mike Dillon encountered plenty of drugs. But nothing has surprised him as much as what he has seen in schools lately.
Dillon, who is now a school resource officer with the Mesa County Sheriff's Department, said he is seeing more and younger kids bringing marijuana to schools, in sometimes-surprising quantities.
"When we have middle school kids show up with a half an ounce, that is shocking to me," Dillon said."
Who could have foreseen this? It's a mystery...