The persistent myth of drugged Halloween candy

Every year, the same grim warnings about drugged candy are issued with scant evidence to back up the fear campaign.

A few months back, I wrote about “The Dangers of Fentanyl,” a viral video shot and edited by the San Diego County Sheriff's Department. To briefly summarize the video: while searching the trunk of a car, one of the sheriff’s deputies falls to the ground after (supposedly) touching fentanyl, a synthetic opioid; another deputy on the scene administers a d…