A forensic-based study on low angled AK rifle bullet entry wounds using a porcine model

Area of Science:

• Forensic pathology
• Ballistics
• Wound analysis

Background:

• Entry wounds offer richer forensic evidence than exit wounds.
• Common entry wound characteristics include abrasion collars and gunshot residues.
• AK rifle bullets (7.62 mm × 39 mm) present unique forensic challenges.

Purpose of the Study:

• To investigate the macroscopic characteristics of low-angled AK rifle bullet entry wounds on porcine skin.
• To identify unique features differentiating these wounds from typical entry wounds.
• To establish relationships between bullet trajectory and wound dimensions.

Main Methods:

• Experimental study using porcine skin as a model.
• Analysis of low-angled entry wounds from AK rifle bullets (7.62 mm × 39 mm).
• Macroscopic examination and measurement of wound characteristics.

Main Results:

• A distinct entry wound characteristic, similar to an abrasion ring but with unique structural differences, was observed.
• The study identified an abraded area and more damaged outer margins around these specific entry wounds.
• A significant inverse relationship was found between the bullet's approaching angle and the external entry wound length.

Conclusions:

• The study contributes novel knowledge to the forensic pathology of gunshot wounds, specifically for low-angled AK rifle bullet impacts.
• The identified wound characteristics can aid in differentiating wound types and reconstructing shooting incidents.
• Findings enhance the forensic analysis of ballistic evidence.