Police said they seized an estimated $150 million worth of heroin and cocaine during a bust earlier this month in Pontiac.
The Oakland County Sheriff's Department and the U.S. Drug Enforcement Administration on Wednesday announced details of last Friday's bust in Pontiac.
Authorities said a search of a home found 69 kilograms of heroin and 10.5 kilograms of cocaine. The agencies said it's the largest quantity of heroin ever discovered in Michigan. Sheriff Mike Bouchard said the sheer quantity of drugs is "startling.'