Finding Infidelity with Science


Image via Matthew Romack | Flickr

Discovering their spouse is having an affair is one of the biggest fears a person can have in a marriage, and its frequency in society and media is doing nothing to alleviate the paranoia. It’s not impossible or rare for accusations of infidelity to destroy a union without positive evidence of extra-marital affairs actually occurring.

More Than Words

Accusing someone of cheating out of sheer paranoia is a devastating move that can cause friction in a marriage where none existed before. Similar to a criminal case, there needs to be more than circumstantial evidence before even beginning to insinuate something happened. More people are realizing that the only way to resolve such suspicions is to confirm them completely and without question.

This is why forensic services such as DNA Plus are emerging. These companies give spouses the biological reprieve they’ve been looking for to confirm or dispute their doubts. These chemical laboratories can test for the presence of semen, vaginal fluids, or any other bodily excretion that can confirm the presence of an affair.

Tying All Loose Ends

The way these services work is by either sending an intimate article of clothing – usually undergarments – to the labs for testing, or by ordering field kits that allow people to test the samples themselves. The presence of DNA or any kind of biological strain that doesn’t belong to either spouse is strong evidence for the presence of an affair.

The use of these services, however, comes with a few rules that people need to follow in order for them to get an accurate interpretation of the data. There are cases wherein people detected semen or fluid samples from their spouse’s garments, only to later find out that the samples were their own. In order to detect infidelity through biological confirmation, people first need to eliminate themselves from the possible samples.

Laboratories advise doubting spouses to refrain from sex for five to six days, or to send a sample of their own DNA along with the test garment for comparison. The lack of contribution or the presence of additional samples on the test garment is evidence that would be very difficult to disprove.