Daniel A. Cespedes, 33, was charged with possession of heroin and intent to distribute, Berdnik said.
"This is a significant arrest and a large amount of narcotics were seized and taken off the streets of northern New Jersey," Berdnik said.
Detectives pulled over Cespedes during an undercover operation at the mall around 1:45 p.m. Friday, the sheriff said. Detectives saw Cespedes try to hide an orange tool-bag behind the front passenger seat and found heroin within it, he said.
Cespedes was held on $250,000 bail in the Bergen County Jail.
The arrest followed a joint investigation by the New Jersey Attorney General's Office and the Passaic County Sheriff's Office, Berdnik said.
The street value of the heroin could have ended up three times its $500,000 value once diluted and packaged individually, Berdnik said.
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