Fentanyl is a synthetic opioid that has contributed to many of the 91,000 overdose deaths in America over the past year. This Schedule II drug is said to be 80-100 times more potent than morphine. A recent video of a San Diego sheriff deputy who collapsed after he was exposed to fentanyl in the field went viral and led to much discussion about the risks of exposure. In this episode of Policing Matters host Jim Dudley chats with John M. Williams, Sr., MD, MPH, about the hazards of fentanyl and how officers can minimize risks.