A Guide for Explosion and Bombing Scene Investigation

Section C. Evaluating the Scene
Note: At the time the scene is determined to involve a bombing or other
crime, the investigator must address legal requirements for scene
access, search, and evidence seizure.
1. Define the Investigator Role
Principle: The investigator must coordinate with the incident
commander and first responders to determine what
occurred and to assess the current situation. Subsequent
procedures will vary depending on the magnitude of the
incident.
Procedure: Upon arriving at and prior to entering the scene, the
investigator should:
A. Identify and introduce himself or herself to the incident
commander.
B. Interview the incident commander and first responders to evaluate
the situation, including safety concerns, and determine the level
of investigative assistance needed.
C. Conduct a briefing with essential personnel (e.g., law enforcement,
fire, EMS, hazardous materials, and utility services
personnel) to:
◆ Evaluate initial scene safety to the extent possible prior to
entry.
◆ Ensure that a search for secondary explosive devices has
been conducted.
Caution: Only bomb disposal personnel should handle any suspected
devices that are located. Take no further action until the devices have
been identified or rendered safe.
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