Ohio Revised Code Title XXI. Courts Probate Juvenile § 2151.3531

If a child is adjudicated a deserted child and a person indicates to the court that the person is the parent of the child and that the person seeks to be reunited with the child, the court that adjudicated the child shall require the person, at the person's expense, to submit to a DNA test to verify that the person is a parent of the child.