Police in Puyallup, Washington, say they have served search warrants on several buildings, including one housing what they call an unlawful marijuana growing operation and hash oil extraction lab.
Seven people face federal charges following several explosions in the Puget Sound area due to hash oil.
Prosecutors say 38-year-old Jason Loken thought he was selling six pounds of pot to a prostitute last summer when he was confronted by two robbers who bound him and stole his marijuana, hash oil and guns
Hundreds of butane canisters exploded at a house where marijuana was illegally being processed into hash oil
Police in Seattle and Shelton, Wash., report that two residential explosions are believed to have been caused by a marijuana extraction process. Four young people were injured in the Shelton blast.
Police say a two-alarm fire that injured three people in Forest Grove was started by a blast of flammable gas used to process marijuana into hash oil.