Trace Evidence Analyst Tarah Helsel Testifies in Bermuda

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Tarah Helsel, RJ Lee Group trace evidence analyst and gunshot residue (GSR) expert, recently testified in a Bermuda murder case. After explaining to the courtroom that lead, barium, and antimony are fused together and released in a cloud when the firearm is discharged, Ms. Helsel went on to clarify that these particles can also be […]

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