Yo Dude, Never Mind, Just Weed, It's Cool: In Newly Legal States, Cops Have to Retrain Drug-Sniffing Dogs

With Washington state, Colorado and likely other places soon passing laws decriminalizing small amounts of weed, police face the bizarre challenge of "untraining" pot-sniffing K-9 units to focus on "truly illegal substances" like heroin, cocaine and meth. In an intriguing old-dog-new-trick footnote, trainers say it's much easier to teach dogs to respond to pot than to ignore it once they've, like, you know, gotten used to it.

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