One arrest has been announced in last week's federal raids of more than a dozen sites connected to the marijuana business.
Forty-nine-year-old Hector Diaz faces gun charges after federal authorities seized five assault-style rifles, five handguns, a shotgun and a "large cache of ammunition" during a home search last week.
KUSA-TV reports that Diaz is a Colombian national. He was charged Friday with being in possession of a firearm after having been admitted to the United States under a non-immigrant visa.
The arrest was revealed in a court document unsealed Monday.