Explain with an example of a professional reference letter? The person is applying for a Substitute teacher position but worked in Juvenile courtroom for 5 years they maintained a great repour with courtroom staff which included social workers, Judges, parents of juveniles and juveniles, maintained safety and security kind a courtesy even to people in and out of custody. Always professional. I felt safe and had no concerns while she was working the courtroom as a charge bailiff, and I was able to get my job done in the courtroom with no concerns.