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[Defined contusion marks caused by the knife handle].

S Pollak¹, R La Harpe

¹Institut für Rechtsmedizin, Universität Freiburg/Br.

Archiv Fur Kriminologie

|July 1, 1992

Summary

This summary is machine-generated.

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Forensic analysis of stab wounds reveals that abrasions from the knife handle can identify the weapon. Blunt force trauma analysis aids in determining blade length and stab angle.

Area of Science:

Forensic pathology
Ballistics
Trace evidence analysis

Background:

Stab wounds involve both cutting and blunt force trauma.
Knife design features can leave distinct marks on tissue.
Accurate weapon reconstruction is crucial in forensic investigations.

Observation:

Vigorous insertion of a knife causes blunt traumatization beyond cutting.
Abrasions from knife components (handle, guard) provide shape and size information.
Contusion marks indicate complete blade penetration and aid in estimating blade length.

Findings:

Specific abrasion patterns correlate with knife construction (handle, guard).
Oblique stab angles can be inferred from incomplete, one-sided handle marks.

Related Experiment Videos

Depth of penetration, indicated by contusion, helps determine blade length.

Implications:

Detailed analysis of stab wound characteristics can reconstruct the weapon used.
This method enhances forensic casework involving stabbing incidents.
Provides valuable insights for legal proceedings and criminal investigations.