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Appendix E

Personnel Resources for the Bomb SceneInvestigation

Team Leader

Assume control and ensure safety of personnel and security of the scene.Conduct an initial walk-through, with a bomb technician for the purpose

of making a preliminary survey and assessment, evaluate potentialevidence, prepare a narrative description of the scene, and determinesearch patterns to be used.

Designate crime-scene command post and establish or evaluateperimeters.

Determine level of investigative response required and make teamassignments.

Ensure sufficient supplies and equipment are available for personnel.Ensure exchange of information between scene personnel and field

investigators.Control access to the inner perimeter and ensure that everyone is logged

into the scene.

Continually reevaluate the efficiency of the search.Depending on the magnitude of the scene, designate personnel to con-

duct interviews of witnesses at the scene.Ensure that all evidence is properly collected, documented, preserved,

and inventoried.Release the scene after the final survey and inventory of the evidence is

completed.

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422 Practical Bomb Scene Investigation

Coordinate with overall command post and other law enforcement agen-cies and ensure a cooperative spirit is maintained.

Photographer and Photographic Log Recorder

Photograph entire area before the scene investigation begins.Photograph victims, crowd, and vehicles.Photograph entire scene with overall, medium, and close-up coverage,

using measurement scale when appropriate.

Photograph major evidence items before they are moved; coordinate withsketch preparer, evidence recorder, and recovery personnel.

Photograph all latent fingerprint and other impression evidence beforelifting and casting is accomplished.

Obtain or photograph blueprints, maps, and previous photographs ofthe scene before the incident, as required.

Prepare photographic log and photographic sketch.

Sketch Preparer

Diagram immediate area of the scene and orient sketch north.Set forth on sketch major items of evidence, if any, and coordinate

evidence numbers with evidence recorder and recovery personnel.Indicate adjacent buildings, rooms, apartments, and furniture as needed.

In cooperation with team leader and evidence searchers, designate,label, and provide nomenclature of areas to be searched.

Obtain appropriate assistance for taking measurements.From sketch made at scene, prepare finished sketch following comple-

tion of scene investigation.

Evidence Recorder/Custodian

Prepare evidence recovery log.Receive and record all evidence.Prepare and maintain chain of custody.Coordinate numbering and designate areas to be searched with sketch

preparer.Coordinate evidence collection with sketch preparer, photographer, and

other forensic specialists.

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Appendix E 423

Maintain custody and control of evidence.Keep team leader and evidence searchers advised of the progress of evi-

dence collection and recovery of significant items.Coordinate transmittal of evidence to evidence storage location, to theinvestigator responsible for the overall investigation, and/or to thecrime laboratory, according to agency guidelines as appropriate.

Evidence Recovery Personnel

Locate items of possible evidence.Have significant items of evidence photographed before being collected.Keep team leader apprised of significant items of evidence when found.Document the collection of evidence found by initialing the evidence

container and turn it over to evidence custodian.Coordinate evidence collection location with evidence recorder and

sketch preparer.

Ensure that established safety measures are followed with regard to per-sonnel protective clothing/equipment.

Bomb Technician

Assist in the initial walk-through for the overall assessment of the scene.Assist in determining the seat of the explosion.

Provide a security assessment of the scene for secondary devices, uncon-sumed explosives, and other hazardous materials.

Assist in determining the type of explosion and whether it was accidentalor criminal in nature.

Provide a technical evaluation of recovered evidence.

2006 by Taylor & Francis Group, LLC