This is very interesting.And it's written by guess who...
http://www.crimeandclues.com/index....analysis-modus-operandi-signature-and-staging
Staging
When investigators approach a crime scene, they should look for behavioral "clues" left by the offender. This is when investigators attempt to find answers to several critical questions. How did the encounter between the offender and victim occur? Did the offender blitz (ambush) the victim, or did he use verbal means (the con) to capture her? Did the offender use ligatures to control the victim? What was the sequence of events? Was the victim sexually assaulted before or after death? When did the mutilation take place--before or after death? Did the offender place any item at the crime scene or remove something from the crime scene?
As investigators analyze crime scenes, facts may arise that baffle them. These details may contain peculiarities that serve no apparent purpose in the perpetration2 of the crime and obscure the underlying motive of the crime. This confusion may be the result of a crime scene behavior called staging. Staging occurs when someone purposely alters the crime scene prior to the arrival of the police.
Reasons for Staging
Principally, staging takes place for two reasons--to direct the investigation away from the most logical suspect or to protect the victim or victim's family. It is the offender who attempts to redirect the investigation. This offender does not just happen to come upon a victim, but is someone who almost always has some kind of association or relationship with the victim. This person, when in contact with law enforcement, will attempt to steer the investigation away from himself, usually by being overly cooperative or extremely distraught. Therefore, investigators should never eliminate a suspect who displays such distinctive behavior.
The second reason for staging, to protect the victim or the victim's family, occurs for the most part in rape-murder crimes or autoerotic fatalities.
This type of staging is performed by the family member or person who finds the body. Since perpetrators of such crimes leave their victims in degrading positions, those who find the bodies attempt to restore some dignity to the victim. For example, a husband may redress or cover his wife's body, or in the case of an autoerotic fatality,3 a wife may cut the noose or the device suspending the body of her husband.
Basically, these people are trying to prevent future shock that may be brought about by the position, dress, or condition of the victim. In addition, they will often stage an autoerotic fatality to look like a suicide, perhaps even writing a suicide note. They may even go so far as to the make it appear to be a homicide.
For both types of crime scene investigations, rape-murders and autoerotic fatalities, investigators need to obtain an accurate description of the body's condition when found and to determine exactly what the person who found the body did to alter the crime scene. Scrutiny of forensic findings, crime scene dynamics, and victimology will probably reveal the true circumstances surrounding the deaths.
Finally, at some crime scenes, investigators must discern if the scene is truly disorganized or if the offender staged it to appear careless and haphazard. This determination not only helps to direct the analysis to the underlying motive but also helps to shape the offender profile. However, recognition of staging, especially with a shrewd offender, can be difficult. Investigators must examine all factors of the crime if they suspect it has been staged. This is when forensics, victimology, and minute crime scene details become critical to determine if staging occurred.
"Red Flags"
Offenders who stage crime scenes usually make mistakes because they arrange the scene to resemble what they believe it should look like. In so doing, offenders experience a great deal of stress and do not have the time to fit all the pieces together logically. As a result, inconsistencies in forensic findings and in the overall "big picture" of the crime scene will begin to appear. These inconsistencies can serve as the "red flags" of staging, which serve to prevent investigations from becoming misguided.
To ensure this doesn't happen, investigators should scrutinize all crime scene indicators individually, then view them in context with the total picture. Crime scene indicators include all evidence of offender activity, e.g., method of entry, offender-victim interaction, and body disposition.
When exploring these issues, investigators should consider several factors. For example, if burglary appears to be the motive, did the offender take inappropriate items from the crime scene? In one case submitted to the National Center for the Analysis of Violent Crime (NCAVC), a man returning home from work interrupted a burglary in progress. The startled burglars killed him as he attempted to flee. But, an inventory of the crime scene determined that the offenders did not steal anything, although it did appear that they started to disassemble a large stereo and TV unit.
Further examination of the crime scene revealed that they left smaller, and easily transported, items of far greater value (jewelry, coin collection, etc.). The police subsequently determined that the victim's wife paid the burglars to stage the crime and kill her husband. She, in fact, was having an affair with one of the suspects.
Another factor to consider is the point of entry. Did the point of entry make sense? For example, did the offender enter the house through a second-story window, even though there was an easier, less conspicuous entrance that could have been used? Why did the offender increase his chance of being seen by potential witnesses who might alert authorities?
Investigators should also consider whether the offender put himself at high risk by committing the crime during the daylight hours, in a populated area. If the crime scene is a place of residence, they should also evaluate any obvious signs of occupancy, such as lights on in the house, vehicles in the driveway, etc.