The measure is intended to close a loophole in state law that previously meant fentanyl traffickers could only be charged with manufacturing, dispensing or possessing the drug. According to the federal Centers for Disease Control and Prevention and the Drug Enforcement Administration, Massachusetts in 2014 had the second-highest number of seizures of fentanyl, which officials said can be 50 to 100 times more powerful than morphine. Herren, who first met Baker during last year's gubernatorial campaign, backs the governor's proposal to allow doctors and other medical professionals to commit a person involuntarily to a drug treatment facility for up to 72 hours if they're considered an immediate danger to themselves or others.