Secondary Scatter
Definition
The distribution of skeletal material away from the primary deposition point by post-mortem processes: scavenger activity, water transport, slope movement, or human disturbance.
- Field
- Surface scene of recovery
- Causes
- Scavengers, water transport, slope movement, disturbance
- Effect
- Skeletal elements moved from deposition point
- Contrast
- Scatter arising from decomposition itself
Common questions
How do investigators distinguish secondary scatter from decomposition-related scattering?+
Secondary scatter shows displacement tied to an external agent, such as directional dragging or gnaw marks from scavengers, downhill clustering from slope wash, or sorting by water flow, rather than the localized limb separation typical of in-place decay.
Why does documenting secondary scatter matter for scene reconstruction?+
It can reveal how much time has passed since death, the presence and behaviour of scavengers, or whether the scene was disturbed by people, all of which affect interpretations of the original deposition location.
Can secondary scatter mislead estimates of the original death location?+
Yes, if scattering is extensive investigators may misjudge the primary deposition point unless bone distribution is mapped carefully and likely transport vectors such as slope, drainage, or scavenger routes are accounted for.
Related terms
- Directional Scatter
- A non-random distribution pattern in which skeletal elements or other material are concentrated in a particular compass direction from the primary deposition...
- Grid-Based Collection
- A systematic search method in which the scene is divided into numbered cells, each searched and recorded in turn, with every item's...
- Primary Deposition
- The original position in which the body was placed or fell after death, before any movement by scavengers, water, or other post-depositional...
- Scene-of-Recovery
- The location where remains are found, which may or may not be the location of the original death or primary deposition. Distinguishing...
- Total-Station Plotting
- The recording of three-dimensional coordinates of each item by an electronic surveying instrument (total station) before it is collected. The resulting point...