Types of Crime Scene


Thinking About Becoming A Forensic Science Student?

                              Psychology Programs

SSN IFrame Widget - Blue

Find a Forensic Science School

Types of Crime Scene

There are three types of crime scene:

1. The Outdoor Crime Scene

The outdoor crime scene is the most vulnerable to loss, contamination, and deleterious change of physical evidence in a relatively short period of time. Individuals with access to the scene can potentially alter, destroy or contaminate evidence.

The risk is greatest when crime scene investigators fail to secure the crime scene properly. Destruction or deterioration of evidence due to environmental conditions such as heat, cold, rain, snow and wind are problems associated with outdoor scenes. Evidence that cannot be protected under these conditions should be collected expeditiously without compromising its integrity. Investigators who encounter a combination of an indoor and outdoor scene should give priority to processing the outdoor component.

Nighttime outdoor crime scenes are particularly problematic. Regardless of the quality of the light source used to illuminate the scenes, the lack of sunlight can lead to investigators inadvertantly missing or destroying evidence. Whenever possible, outdoor crime scenes should be held and secured until daylight for processing.

2. The Indoor Types of Crime Scene

Evidence at an indoor scene is generally less susceptible to loss, contamination and deleterious change. Indoor crime scenes are usually easier to secure and protect, and securing a scene can be as simple as closing a door. The methods used by forensic laboratories have evolved so that very small amounts of biological material can produce a usable DNA profile. This, however, means that the potential for detecting DNA traces deposited by contamination at crime scenes becomes a factor.

Contamination of any crime scene can easily occur if proper precautions, such as limiting the number of people inside the scene, are not taken. For example, first responders, emergency medical personnel, patrol supervisors, crime scene investigators, and medical examiners are all potential sources of contamination and/or loss of evidence.

3. The Conveyance Crime Scene

Conveyance is defined as "something that serves as a means of transportation." Types of crimes committed in conveyances include, but are not limited to:

  • Vehicle Burglary
  • Grand Theft
  • Car Jacking
  • Sexual Battery
  • Homicide
  • It is important that the crime scene investigator recognize that physical evidence recovered from these scenes may extend well beyond the conveyance itself. The flight path of the perpetrator may reveal evidence important to the investigation. For example, impression evidence, such as shoe or footprints in soil, may be found leading away from the scene, and property removed from the conveyance may be deposited or dropped as the perpetrator flees the scene.

    Cigarette butts are sometimes found in and around the conveyance. The nature of the crime may give the investigator an idea of the type of evidence present. To protect the scene against inclement weather and other factors that may contribute to evidence loss and/or destruction, a conveyance such as a vehicle may be transported to the laboratory after proper documentation has been completed.

    (Information provided by the Department of Justice)

    Read FBI Profiling Classics on Kindle

    This special Kindle collection consists primarily of the landmark articles written by members of the Behavioral Science Units, National Center for the Analysis of Violent Crime, at the FBI Academy. These seminal publications in the history of FBI profiling were released by the U.S. Department of Justice as part of the information on serial killers provided by the FBI's Training Division.

    See following link for full details.

    Information on Serial Killers

    Back To Top Of The Page

    Go Back To The Crime Scene Info Page

    Go From Types of Crime Scene Back To The Home Page


    New! Comments

    Have your say about what you just read! Leave me a comment in the box below.

         Advertise Here!

    Behavioral Science

    Criminal Profiling