Yes, she can. All she has to do is press suit to have custody awarded, or convince him to give her custody.
Gimme a Break - 1981 The Custody Suit 2-16 was released on: USA: 10 February 1983
The Plaintiff.
It would depend on the reason. If the parent who filed custody over the six month old child from a divorce, but the other parent files a counter suit for the "safety" of the child, then the judge would have to look more into the case because the other parent had already, as it seems from your question, won custody. If nothing is found then the child remains with the custody holder. But, if something is found then the child will be handed over to the parent who filed the counter suit OR will be sent to child services. It literally depends on the case. Sorry.
He acted like he didn't care
The plaintiff is the person who brings or files suit and the defendant is the person who is sued by the plaintiff.
The plaintiff is the person who brings or files the suit. The person who gets sued is the respondent or defendant .
If after conducting and investigation that is their finding, yes, they can do so.
When CPS or other child welfare authorities take custody of a child, they must file a suit, usually in juvenile court. This is often referred to as a deprivation proceeding. The father would have to file notice in the suit and seek custody from that court.
The suit for custody will be filed in the county where the child resides. Once the court makes a decision regarding physical and legal custody it will also issue child support and visitation orders. That court will continue to have jurisdiction over the case.
The person that files a civil suit is known as the Petitioner or the Plaintiff or the Claimant.
It depends on how you answered the paternity suit. If you are not the parent and it is proved that you are not the father, nothing more needs done. If you are the parent, many more court dates could come to determine custody and child support.