"Full custody" means that a parent has the legal responsibility and right to take care of a child all by themselves without needing permission or help from the other parent. Full definition
An order to show cause tells the other parent to appear in court to respond to your request for full custody of your children. (info.legalzoom.com)
During that time he has also been fighting through the courts for full custody of his daughter, who is in the care of her maternal grandmother. (theguardian.com)
With this arrangement, there are at least two children, and each parent is awarded full custody of at least one child. (divorcesource.com)