Children.  The law says, in short, what is in the best interests of the child.  That in itself can be complex - and incredibly emotional for the very best of parents.  In other cases the children have become used as "bargaining chips".  We have tried to set out a simple explanation of a few of the legal concepts remembering, more than in almost any other field of law, because the Courts need to do what is best for each child, they need to explore the particular and obviously individual circumstances of each and every family and child.