A Putnam County man convicted of having relations with an underage girl was sentenced to 18 years in prison under terms of a plea deal.
31 year old Michael Scales of Greencastle pleaded guilty to four charges of having sexual relations with a minor.
Scales must also register as a lifetime sex offender.
The crimes all occurred January 2010 and December 2012.
Scales was a guard at the Putnamville Correctional Facility at the time of his arrest.