A Maricopa County Sheriff's Office task force found enough heroin to supply thousands of users after a traffic stop.
The sheriff's office was contacted by an unspecified agency about a vehicle coming through the Phoenix area with narcotics.
On September 12, deputies located the vehicle on Interstate 10 near 35th Avenue and followed it to a parking lot.
There, investigators reportedly saw a bag being transferred from one vehicle to another. They later stopped the car the bag was moved to and watched as 40-year-old Horacio Carrasco Barraza destroyed a cell phone.
In the car, investigators allegedly found four bricks of heroin weighing a total of ten pounds.
MCSO says the heroin is worth about $18,000 per pound and is "enough to supply more than 10,000 users," according to court paperwork.
Barraza has been charged with conspiracy and transportation of a narcotic drug, among other charges.