Two years of experience as a probation or parole officer, or in counseling, psychology, social work, education, criminal justice, or administrative services plus a master's degree in counseling, psychology, social work, education, business administration, public administration, or a criminal justice field. Three years of experience as a probation or parole officer, or in counseling, psychology, social work, education, criminal justice, or administrative services plus one of the following: Three years of experience in corrections or law enforcement.