Paternity test with judicial validity

The biological paternity research test is one that aims to assign or exclude the paternal-filial genetic link. This test is performed by a comparative analysis of the DNA polymorphisms of both to determine or exclude the genetic relationship. The results have maximum reliability.

The evidence is admitted in a court provided that the correct process of taking, identifying and sending the samples to the laboratory is guaranteed. That is why the samples are taken in the laboratory itself, after identifying the participants. There are exceptional cases, that due to mobility problems of one of the parties, the laboratory staff may move to the home. This guarantees the chain of custody at all times.     

The easiest way to obtain the biological sample from those involved is by performing a buccal smear, using cotton swabs to collect the cells of the buccal epithelium or saliva.     

This option is the most frequent because it is not invasive, it is easy to preserve and gives excellent results. They are obtained by rubbing the inside of the dry sterile cotton swabs. Two shots are made one on the inside of the right cheek and the other on the left.     

Even so, you can also collect these samples:     

• peripheral blood stains on absorbent paper  
• cadaver remains (bones and teeth)  
• biological tissues (paraffin biopsies)