A criminal is traditionally read as guilt, a broken rule or the part of you that pushes against limits. It can also stand for the fear of being accused of something.
Has this come up in your dreams before? What was going on in your life then?
My Cosmic Code has a private dream journal. Write a dream down and the app picks out the symbols in it, shows what dream books say about them and, over time, which words recur across your entries. The journal is stored on your device only.