Master Gas Chromatographical Identification of Condom Lubricants

Abstract

In most of the cases of sexual assault, scientists are in search of biological evidences like blood, skin, hair, saliva, urine, semen for DNA analysis. The uses of condoms in sexual assault cases were now increasing to avoid leaving the biological traces in the crime scene. In these cases, finding of the condom lubricant traces from victims can play a vital role in sexual assault cases. It has been found that gas chromatography gives an important method of such identifications. Gas chromatography was one of the important analytical tools used in majority of forensic laboratories. In present study condoms were referred to forensic science laboratories from police station was used to analyze these lubricants. The finding shows that majority of condom lubricants used were polydimethylsiloxane (PDMS). The Gas chromatograph spectra database of lubricants can be used to provide associative evidences between victim and sexual assailants.