Will this show up on background checks?

I was 19 when I was caught shoplifting about $9 worth of merchandise at Meijer. I was brought into the back and was talked to by loss prevention. I'm pretty sure they took my fingerprints and name/address. A cop showed up later. No charges were pressed and they had me sign a paper saying that I wouldn't come back. They also had me pay a civil demand fine of $200 which i did pay by check a few weeks later. About a week after the incident, my school dean sent me a letter saying he wanted to talk to me about it because this was very out of character for me. I just want to know if this will show up on background checks because I want to work in the criminal justice system.