How to identify sperm stains?

The detection of semen residue on a piece of clothing or any other item can be essential in cases where a police investigation is being carried out on a crime, often a rape, although the circumstances can be variable. It may seem that when they dry, the question of how to identify sperm stains is impossible to answer, but this is not the case. So, how to identify sperm stains on a piece of clothing or any other material? The key lies in three letters, PSA, the acronym for prostate specific antigen. It is a protein also called P30 that is produced in this organ of the male reproductive system and that comes out mixed with seminal fluid. The correct process through which a biological laboratory, such as LabGenetics, can know how to identify sperm stains is called chromatographic immunoassay with monoclonal antibodies. If properly applied, this technique can even detect the concentration, and therefore the relative amount, of PSA present in the semen remains analysed.

Identification from DNA

Also, if in addition to how to identify sperm stains we want to detect the identity of the person from whom they come, it is possible to extract the DNA from this sample and compare it with that of an individual who requests this test. The results can determine whether the sperm sample comes from this same person or from someone with family ties. Genetic tests of this nature are not limited to the question of how to identify sperm stains. The technology of advanced biological laboratories such as LabGenetics also allows the location of blood or saliva samples impregnated on clothing or other objects of different materials and to specify the person from whom they come. Without a doubt, these are answers that will be very important for Justice to function better. Here are two links to learn more about paternity tests or DNA tests.

Call us now at 91 659 22 98