All parties involved live in Louisiana.
My friend just found out that he is the biological father of a 15 month old child. The mother of the child was married at the time of conception and is still married to her husband. The husband is listed as the father of the child on the birth certificate. The husband wants to raise the child as his own and work things out with the mother. (The mother is pregnant again and the odds are that this pregnancy is a result of her cheating with yet another man.) The mother and husband want to raise the child as their own and exclude my friend from the child's life. What rights does my friend have to this child? He desperately wants to be in the child's life.
P.S.: Upon my advice, my friend had a Legally Admissible Test DNA test conducted (as means to present evidence in a court of law) with the consent of the mother. DNA samples were collected under strict "chain-of-custody" to ensure legal admissibility when proof is needed.