![]() Often straight off the brick or kilo, heroin is sold - relatively pure & in wholesale quantities. | During the first half of the 1990s, Colombian cartels dominated the trafficking of heroin to the United States. Now Mexican traffickers have taken over. In 2014, 79 percent of the total heroin seized was produced in Mexico. Heroin seizures across the US have increased by 80 percent in five years, from 3.73 tons in 2011 to 6.72 tons in 2015. China White heroin contains a mixture of Mexican and Colombian poppies, and is processed using methods traditionally used in Southeast Asian countries. China White has the added benefit of being able to be cut with synthetics without any change in appearance. The sum of all these factors is that heroin is more dangerous and is spreading at unprecedented rates. | ![]() |