In order for a mother to be charged with kidnapping, there must be a custody order awarding someone else custody, or her parental rights must be terminated.
The police would charge her with kidnapping. The father or any other adult could report the crime to the police.
Not legally. Father can be charged with kidnapping.
Yes
If she is not the one with custody, yes.
Unless you go back to court and have the custody order reversed then yes, you could be charged with kidnapping because while the order is in effect she is acting as the parent.
I take it you have no established, legal relationship to the children. In that case, are you familiar with the term "kidnapping?"
Yes
if the mom is there, no, even if the mom isn't it's still not kidnapping, kidnapping is when somebody takes the child and doesn't give it back, that's just getting a ride
Since there is no court order and you were never married it is the mother that have custody. He can be charged with kidnapping.
no
There is no scientific proof that direct heart to heart contact between Mother and child can restart a childs heartbeat.
No
Call the Police. It's Kidnapping. Unless your mother has custody of the child, it is kidnapping and should be reported to the police.