After a multi-year investigation, federal agents yesterday raided more than a dozen head shops across the Treasure Valley, and arrested the owners and operators on charges including conspiracy to sell and offering to sell drug paraphernalia; nine of the 13 were found to be openly selling "Spice," or synthetic marijuana, which Idaho lawmakers outlawed last year. U.S. Attorney for Idaho Wendy Olson said, "The United State's Attorney's Office and its federal, state and local law enforcement partners will attack drug trafficking on all fronts."

Sixteen people have been indicted, and at least 14 of them arrested. Boise Police Chief Michael Masterson said, "This investigation and the execution of these search warrants should send a strong message that if you're selling Spice under any name or packaging, you need to stop." Matthew Barnes, federal Drug Enforcement Administration special agent in chage, said, "Criminal organizations that masquerade as legitimate storefronts to sell drug paraphernalia to our children will not be tolerated." You can read the full announcement here from the U.S. Attorney's office about "Operation Headshop - Not for Human Consumption."