DNA Paternity Testing
Paternity testing can be used to determine if a man is the biological father of a child. DNA testing may be necessary to establish the paternity of an unwed father who refuses voluntary acknowledgment. In this case, the paternity test is usually requested by mother trying to collect child support.
A DNA paternity test can also be used to show that a certain man is not the biological father of a child. This type of paternity testing might be requested if an ex-husband believes that he did not beget the children he is supporting financially. In some cases, a woman may request a paternity test to show that a man is not the biological father in a child custody battle.
DNA paternity tests are most often performed using buccal (cheek) swabs or blood samples from the man and child. While not essential, tissue samples from the mother can aid the identification process. DNA testing can also be performed using other samples of tissue like hair, semen, and skin. In some cases, paternity may need to be established before birth, and there are ways this can be accomplished as well.