Illegal vape hunt: SF nabs smoke shop owners in undercover op : r sanfrancisco The dirty, dangerous secret of California's legal weed Los Angeles Times Recently the Dunn County Sheriff's Office in collaboration with the U.S. Postal Inspectors Office intercepted a shipment of "Dank Vapes" brand prefilled THC oil cartridges being shipped into Dunn County. Seized was THC vape ban goes into effect in Texas. Here's what it means