Source Identification of Human Biological Materials and Its Prospect in Forensic Science

Area of Science:

• Forensic Science
• Genetics
• Molecular Biology

Background:

• Accurate source identification of human biological materials is vital for crime scene reconstruction.
• Forensic experts face challenges in pinpointing the origin of biological evidence.
• Genetic markers are increasingly studied for their potential in forensic analysis.

Purpose of the Study:

• To review and compare various genetic markers used for human biological material source identification.
• To assess the principles and methodologies behind different genetic marker-based identification techniques.
• To highlight the importance of these markers in forensic evidence.

Main Methods:

• Review of existing literature on genetic markers for biological material identification.
• Comparison of principles and methods for DNA methylation, mRNA, microRNA, microflora, and protein analysis.
• Evaluation of single versus multiple genetic marker detection strategies.

Main Results:

• Different human biological materials are best identified using specific types of genetic markers.
• Source identification can be achieved by analyzing single or combined genetic markers.
• Current forensic laboratories lack uniform standards and methods for this analysis.

Conclusions:

• The development of reliable methods for distinguishing human biological materials is a key future direction in forensic science.
• Advanced genetic marker analysis offers significant potential for strengthening forensic evidence.
• Standardization of methods will enhance the reliability and admissibility of forensic findings.