Mexico ’ s Department of Public Sanitation declares new legislation , titled : “ Dispositions on the Cultivation and Commerce of Products that Degenerate the Race .” This bans the sale , production and recreational use of cannabis . |
As US states begin to criminalize the plant , Mexico bans stock from being exported over the
border .
1930s Drug cartels begin to organise in Mexico to smuggle alcohol into the US during prohibition , eventually expanding to cannabis and other illegal drugs using increasingly violent means .
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The US government sponsors a scheme to spray herbicides paraquat and 2,4-D over cannabis fields in Mexico using helicopters . Herbicide poisoning cases begin to crop up in the US after the tainted plants are smuggled over the border . |
President Felipe Calderón decriminalizes small amounts of cannabis and cocaine for possession , in an attempt for law enforcement to focus on traffickers and cartel bosses instead ecreational users . |