Just like their larger, name-brand competitors North of the Border, the cartels do product quality testing before shipping the merchandise.
{{ The experimentation, members of the cartels say, involves combining the drug with a wider range of additives — including animal sedatives and other dangerous anesthetics. To test their results, the criminals who make the fentanyl for the cartels, often called cooks, say they inject their experimental mixtures into human subjects as well as rabbits and chickens.
If the rabbits survive beyond 90 seconds, the drug is deemed too weak to be sold to Americans, according to six cooks and two U.S. Embassy officials who monitor cartel activity. }}
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