1. A person shall not be appointed as a correctional police officer of any correctional institution assigned, maintained, or operated by the Department of Corrections unless that person:
a. is a citizen of the United States;
b. is able to read, write and speak the English language well and intelligently and has a high school diploma or its equivalent;
c. is sound in body and of good health;
d. is of good moral character; and
e. has not been convicted of any offense which would make the person unfit to perform the duties of the office as evidenced by a criminal history record background check.