As used in Sections 47-5-401 through 47-5-421, the following words and terms have the meanings hereby ascribed to them:
"County inmate" means a person convicted of a crime and sentenced to a term of confinement of one (1) year's duration or less.
"State inmate" means a person convicted of a crime and sentenced to the custody of the Department of Corrections for a term of confinement of more than one (1) year's duration.
"Department" means the Mississippi Department of Corrections.