Sometimes the father of a child is unknown. A paternity test compares the DNA of a child, mother, and alleged father to see if the man is or is not the biological father of a child. A judge can also order a DNA sample taken from other people, like grandparents, siblings, or other relatives. Usually, the DNA is taken by swabbing the inside of a person’s cheek.
In Illinois, a man is presumed to be the father of the child if genetic test results show that he is at least 1,000 times more likely to be the child’s father than a random man.
If you are involved in a parentage case where the judge has ordered genetic testing, and you are happy with the result, make sure the judge signs an order which states the findings of the test.
If you are not happy with the result, you can ask for a second test. You will probably have to pay for this test. If the judge decides you are not a parent after testing, but you have had a relationship with the child that you want to maintain, you might be able to do so. But you should talk with a lawyer as this process is very complicated.
Updated: January 2017