When is a Crime Scene Staged?

There are many reasons why a crime scene has been staged. The most difficult task is to recognize some of the subtle appearances to indicate that a crime scene has indeed been staged. Fires are an example of a type of staged crime scene; it's usually to cover up a previous crime that had been committed such as murder or insurance purposes for profit.
Every detective or forensic investigator must use their own subjective skills along with experience to determine if a crime scene as been staged....