A Guide for Explosion and Bombing Scene Investigation

Procedure: The investigator should ensure that evidence processing
personnel:
A. Use clean protective outergarments and equipment as applicable
for each scene.
B. Consider obtaining control samples as applicable (e.g., evidence
containers, swabs of equipment and personnel).
C. Package collected evidence in a manner that prevents loss,
degradation, or contamination.
D. Package, store, and transport evidence from different scenes or
searches in separate external containers.
Summary: Proper collection, packaging, transportation, and storage
will minimize contamination and ensure the integrity of
the evidence.
4. Identify, Collect, Preserve, Inventory,
Package, and Transport Evidence
Principle: The search focuses on the discovery of physical evidence
that may establish that a crime was committed and link
elements of the crime to possible suspects.
Procedure: To maximize the recovery and evaluation of all types of
physical evidence, the investigator should ensure:
A. The preparation of an evidence recovery log (see the sample in
appendix A) that documents information such as:
◆ Item number.
◆ Description.
◆ Location found (grid number if used).
◆ Collector’s name.
◆ Markings (either directly on the item or indirectly on the
package).
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