The Glenn Sacks' blog NY Times Sunday Magazine article on paternity fraud that I commented on below.
As I see it, a simple change in the state law would solve nearly all the problems. When a new mother fills out a birth certification and she is asked to name the father, there should be a checkbox asking whether she is certain. Here are the possible consequences.
Are you sure? __ Yes __ No
If she checks that she is certain, then the man is presumed to be the father. But if a DNA test ever proves otherwise, then the mother is guilty of perjury, and she must accept the financial responsibilities for her lie. In particular, she can never collect child support.
If she checks that she is not certain, then no man can be required to pay child support unless a DNA test proves him to be the father.
If she refuses to name a father at all, then she should be charged with a form of child neglect. Every child has a right to a father, and she is denying her child a basic human right. If she is just trying to shut the father out of the child's life, then perhaps she ought to give up the child for adoption. At the very least, she should be barred from collecting welfare money to rear the child.
In the vast majority of cases, the mother is certain about who the father is, and my proposal would have no change on existing law. In the sort of troublesome cases mentioned in the magazine article above, it should completely eliminate the problem of some family court ordering some non-father to pay child support because of some silly argument such as a missed deadline or the Best Interest Of The Child (BIOTCh).