A Long Island woman has pleaded guilty to operating a large-scale online narcotics business from her Centereach garage, prosecutors said Thursday.

Carolyn Tolin, 46, admitted to selling heroin, fentanyl, crack and powder cocaine through her dark-web vendor site, “MamaKnowsBrown,” to customers on Long Island and across the country, the Suffolk County District Attorney’s Office said in a news release.

After placing an order through her site, customers paid Tolin in cryptocurrency, which was then converted to cash, investigators said. Tolin used Uber to deliver orders to local customers, while those outside Suffolk County received shipments via USPS or UPS.

She was arrested on March 14 after law enforcement executed a search warrant at her home and recovered “large amounts” of heroin,

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