DISTINGUISHING FEATURES OF THE CLASS: The work involves responsibility on an assigned shift for the enforcement of rules and regulations governing the custody, security, conduct, discipline, safety and general well being of inmates in a County Correctional Facility.  The duties involve considerable inmate contact and supervision in a work, recreation or learning environment.  Work procedures are well defined but incumbents must be alert to possibilities of emergency situations arising and exercise sound judgment when problems occur.  The work is performed under general supervision of a higher level correctional supervisor with leeway allowed for the exercise of independent judgment in dealing with day-to-day situations in the facility.  Does related work as required.