(Galesburg, IL)  --  Two Illinois Department of Corrections correctional officers were in Knox County Circuit court for their alleged involvement with the use of a designer drug that is know as bath salts.  41-year old Brian S. Duncan and 48-year old Denise M. Duncan, both of Galesburg are facing charges of possession of a controlled substance and possession of drug paraphernalia.  The two were arrested following a traffic stop in July.  The Duncans entered not guilty pleas in Knox County Court last Thursday.