The fact that the Mexican groups have elected to steal the gold
outright, rather than purchasing it from legitimate jewelry sellers
as the Colombian cartels used to,
is one sign of the boldness of the Mexican criminal syndicates. It
could also be that stealing gold shipments is viewed as easier and more
convenient than going through the hassle of building a relationship with
a supplier, which could explain why some Mexican groups have elected to
use theft as their primary means of obtaining gold.