Restee T. Jackson, 20, was arrested Wednesday for unlawful possession of crack cocaine, delivering crack cocaine and criminal drug conspiracy.
The arrest concludes a two-month investigation by the Belvidere Police Department Narcotic Unit.
At the time of his arrest, detectives seized over an ounce of crack cocaine during the investigation.
Jackson is being held at the Boone County Jail on a $250,000 bail. He faces up to 30 years in the Department of Corrections.