PARCHMAN, Miss. (WTVA) -- The Mississippi Department of Corrections says it found contraband during a search of three units at the Mississippi State Penitentiary at Parchman.
Prison leaders say they conducted a shakedown Thursday morning at Unit 25, which is for inmates in the pre-release program; Unit 28, which is a work camp and Unit 31, which is for inmates with disabilities.
They say rat poison, liquor in plastic water bottles, cigarette lighters and other contraband were seized.
State Corrections Commissioner Pelicia Hall says most of the contraband, however, came from the work camp where 191 offenders were assigned when officers searched.
She says it appears contraband is being trafficked through staff members, visitors and inmates while on a work detail.
Other contraband found included tobacco, cigarettes, cigarette paper, cellphones and cellphone chargers.
Hall started Operation Zero Tolerance shakedowns in March to decrease the amount of contraband for the safety of staff and inmates.