Sharp force trauma analysis in bone and cartilage: A literature review

Area of Science:

• Forensic Science
• Bioarchaeology
• Pathology

Background:

• Sharp force trauma (SFT) analysis in bone and cartilage is crucial for forensic investigations.
• Existing research extensively documents features of cut surfaces and tool characteristics.

Purpose of the Study:

• To review and summarize existing literature on knife and saw mark analysis in bone and cartilage.
• To identify challenges and areas for improvement in SFT analysis.

Main Methods:

• Literature review of studies on sharp force trauma in bone and cartilage.
• Examination of various analytical techniques, including light microscopy and advanced imaging (micro-CT, SEM, epifluorescence).
• Analysis of studies using controlled versus uncontrolled parameters and human versus non-human materials.

Main Results:

• SFT presentation varies between human and non-human bone, and between controlled and uncontrolled experimental conditions.
• Reported error rates for cut and saw mark analysis show considerable variation.
• Expert testimony based on SFT analysis is admissible but not universally accepted.

Conclusions:

• Despite extensive research, inconsistencies in terminology and methodology persist in SFT analysis.
• Further research is needed to develop objective methods that reduce analyst-dependent errors.
• Standardization of terminology and methods is essential for reliable forensic casework.