The Daviess County Prosecuting Attorney charged Brent Schade, 40, with tampering with a victim/witness.
Schade is currently jailed on rape and sodomy charges in Livingston County.
Schade along with Amanda Gault, 20, were arrested in March for allegedly giving a minor alcohol and drugs, then raping her.
Schade was an officer with the Chillicothe Police Department for six years.
Two Charged in Livingston County Sex Crime Case