Headline at Talking Points Memo.
If you read the article you'll see it's a lot more complicated than that. For one thing, the new law only decriminalizes the personal possession of marijuana and only up to one ounce. How do you detect the remaining marijuana crimes? Yet it seems that the best approach is to have a dog that doesn't alert on smelling marijuana, so that it's easier to show probable cause and get a warrant to search for the drugs other than marijuana.