PLease Help me think up good questions to ask (Criminal Justice field)?

For one of my college courses I have to interview a person who is in law enforcement, and because of my personal career choice I am leaning towards it being a Probation Officer. More than likely, and hopefully, one who deals with juveniles.

I have quite a few questions that I know for sure I want to ask like; most rewarding/least favorable aspect of job, If the person I interview has personally seen a rise or a decline in # of juvenile delinquents, Daily routine of job (or can you run me through a typical day as a p.o.), A typical reason or pattern of why children act out or go through the system. These are just a few I have thought of.

Can you give me some ideas of what you would ask? I am looking for unique questions that I may not have thought of and also really good, solid questions. Thanks everyone!!