The pot-sniffing dogs have to find something else do to. Voters in Washington state legalized pot last November. Now, the state patrol and some other police agencies are retraining their K-9 cops. The Washington Association of Prosecuting Attorneys advises that drug-sniffing dogs should ignore marijuana. KOMO reports prosecutors say an alert from a pot-sniffing dog is no longer enough for a search warrant. The old dogs will have to be taught some new drug-busting tricks.