Identification of Human Semen (Spermatozoa) through Different Methods in Forensic Investigation

Abstract

The presence of seminal stains is very important in crime involving sexual offence. Semen detection is an important factor in forensic investigation to confirm sexual assault in cases of rape. Forensic science laboratory received large numbers of cases involve in sexual offenses for examination and detection of seminal fluid in the exhibits sent by different investigating agencies. A Forensic laboratory receives different types of exhibits for examination of the presence of seminal stains in the exhibits like, garments, cotton swabs, smear in a glass slide, liquid and dry semen, semen mixed with other body fluids, and other articles related to the case. Various methods have been developed in forensic science for identification of semen (sperm). This paper focuses on the basic knowledge of collection seminal stains from the crime scene and detection procedure of human semen (sperm) from the various exhibits in the forensic laboratory. This paper also proposed practical approaches and guideline to help forensic, and law enforcement professionals to deal with the crime scene seminal evidence to avoid contamination, degradation, and loss of the value of the seminal evidence. Keywords: Forensic Science, Spermatozoa, Seminal fluid, Identification of semen, Sexual assaults.