How Mexican cartels and Chinese criminal networks are moving ‘cocaine of the sea’ through Canadian ports

Chinese organized crime networks and Mexican cartels are using Canadian ports to trade highly lucrative fish bladders for the precursor chemicals needed to produce fentanyl, according to a memo from the Canada Border Services Agency (CBSA). It said organized criminal networks transport the fish — called totoaba — from the West Coast to China, while the chemical precursors to make toxic drugs are sent through Canadian ports. The report from the CBSA, first obtained by Radio-Canada through a freedom of information request, said Canada is being used as a “transit point” for the illegal product — though the quantity of…