Investigations started by slain Mingo County Sheriff Eugene Crum resulted in the arrests of 17 residents Thursday.
All of the suspected drug dealers were indicted this week by a Mingo County grand jury.
The operation is called “Operation Zero Tolerance.”
Sheriff Crum was shot and killed in Williamson on April 3. Some county officials originally thought the murder had to do with Crum’s aggressive fight against the drug trade but county Prosecutor Michael Sparks later said there was no evidence to support the theory.
The man charged in Crum’s death, Tennis Maynard, remains hospitalized.