Tag: evidence integrity

Photography Before Evidence Markers: The Critical Sequence for Forensic Documentation

Photography Before Evidence Markers: The Critical Sequence for Forensic Documentation

Photography before evidence markers is a non-negotiable forensic protocol that ensures evidence integrity by documenting crime scene items in their original state before adding scales or labels. This sequence is critical for courtroom admissibility and has been validated across global standards.

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forensic photography chain of custody expert testimony evidence markers crime scene documentation firearm trace eTrace homicide weapons ATF firearm tracing gun trace database impact spatter high-velocity bloodstain patterns forensic blood analysis bloodstain pattern interpretation crime scene forensics threat letters anonymous notes psycholinguistic analysis forensic linguistics criminal profiling

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