A crime scene stands for the aftermath of something that went wrong. Dream books read it as the need to look calmly at what happened before moving on.
Does the traditional reading fit your dream, or did it mean something else to you?
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.