Being arrested is traditionally read as being stopped in your tracks — by guilt, by rules or by your own conscience. It points to a sense of restriction rather than any real event.
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.