There are four main types of crime scenes: outdoor scenes which are more susceptible to environmental contamination; indoor scenes which are easier to secure but more prone to multiple contaminations; conveyance or mobile scenes involving vehicles; and scenes classified based on the location and type of crime committed such as homicides, burglaries, or accidents. Crime scenes can also be classified based on whether they are the primary location where the crime occurred or a secondary connected location, and by their size from the macro scene to microscopic trace evidence.

1. Types of Crime Scenes

2. Outdoor
 Area may be more
 Not covered by a roof
 More prone to contamination
 More barricading an securing is required
 Environmental conditions is a major factor (evidence based
protocols to be followed)
 Lighting conditions, night time, etc.

3. Indoor
 Smaller area
 Covered by a roof
 less susceptible to environmental loss and deleterious change.
 Multiple people accessing the scene will cause contamination
 Securing is much easier

4. Conveyance
 Also known as mobile crime scene
 A vehicle of transportation

5. Classification based on location of the
crime committed
 Primary
 Secondary

7. Primary Crime Scene
 The initial location reported until further information is
obtained.
 The place or location where the crime has taken place

8. Secondary crime scene
 Any other location that is connected to the primary crime
scene
 That is connected to the crime in some manner
 During the process of investigation a secondary crime scene
may turn out to be the primary crime scene.

9. 3rd Classification
 Based on the crime committed
 Homicide
 Burglary
 Sexual assault
 Robbery
 Suicide
 Road traffic accident

10. 4th Classification
Based on the size
 Macroscopic
 The crime scene itself
 Microscopic
 The evidence found
 Trace evidence
 The body