VIRTUAL FORENSIC BENCH // FIREARMS & TOOLMARK BALLISTICS

Comparison Microscopy & Striation Alignment Lab

Mount crime scene fired cartridge against test-fired exemplar, adjust optical split-screen bridge, and align microscopic land/groove striations.

▲ 01 ▲ 02 ▲ 03 ▲ 04 ▲ 05 ▲ 06

9mm LUGER

EXHIBIT C-2 (SCENE)

TEST EXEMPLAR

SEIZED WEAPON TEST

OPTICAL BRIDGE MAGNIFICATION: 40X COMPARISON FIELD

LAB STEP 01 // DUAL-STAGE MICROSCOPY

Mounting Evidence & Exemplar Casings

The comparison microscope connects two identical optical stages through a central comparison bridge. This projects both fired cartridge cases into a single circular split-field eyepiece separated by a hairline dividing optical prism.

CALIBER9x19mm Parabellum

CASING MATERIALBrass Alloy (70 Cu / 30 Zn)

STAGE MOUNTUniversal Ball-and-Socket Jig

Prev: ▲ 02 SEROLOGY & DNA PROFILING Next: ▲ 04 QUESTIONED DOCUMENTS & ESDA

Explore 10-Vol Masterclass Dossier