As I alluded to earlier, illicit drugs are manufactured in clandestine labs. Fentanyl primarily comes over from China, we believe. As you know, very small doses are needed compared with the amount people would have taken when they were using heroine. We believe that, for some reason, fentanyl is now being included in cocaine. Methamphetamine has fentanyl, and fentanyl has methamphetamine, as Dr. Burgess mentioned. Fentanyl has cocaine, and cocaine has fentanyl. There is no quality control where these things are being manufactured, so that's what I meant by “unpredictable”. People think they are buying cocaine, and it may be infiltrated with fentanyl. They think they are buying fentanyl, and it may have something else. There is just no control.
On February 26th, 2019. See this statement in context.