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Bone-Defect Dimensions and Calibre

Definition

Projectile calibre is not reliably determined from a bone opening alone; defect size depends on multiple interaction and preservation factors.

Related terms

Contact Wound
A firearm wound produced when the muzzle is pressed against or within a few centimetres of the target surface. Characterised by a...
External Beveling
The cone-shaped defect geometry at an exit gunshot wound in bone: the inner table diameter (entry face of the defect) is smaller...
GSR (Gunshot Residue)
Residue particles whose morphology and elemental composition may be assessed by SEM/EDS. Their detection does not by itself establish distance or the...
Internal Beveling
The cone-shaped defect geometry at an entrance gunshot wound in bone: the outer table diameter (entry face) is smaller than the inner...
Keyhole Defect
A defect that may combine internal and external beveling during tangential interaction. Its full geometry must be assessed; a long axis alone...
Puppe's Rule
Fracture-arrest relationships may support relative order, commonly discussed as Puppe’s rule. The stated Hering attribution is unverified; actual intersections and limitations must...
Secondary Projectile
A fragment driven by a primary projectile interaction that can cause further injury or damage. Its defect morphology may overlap with other...
Stellate Fracture
Radiating fractures can accompany gunshot defects but are not uniquely caused by contact gases or diagnostic of a universal outer-table origin.
Trajectory Reconstruction
An integrated assessment of local defect relationships, anatomy, imaging and scene evidence. Bone geometry alone does not reconstruct exact muzzle or victim...

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