Does he usually have custody of her? I am surprised court would not interview your other child and wouldn’t the school people testify for you? Could subpoena them and they have to come, but can’t make them say anything if they don’t choose to. I didn’t realize Children’s Services were such wimps and didn’t investigate any more than that.

Have you thought of asking the court to appoint a guardian ad litem to represent the interests of the child in this dispute. That person could talk to the child and then take action to represent the child and not in your interest or father’s interest. However, could rule against you or for you, depending what they thought was best for the child. Might be able to get to talk to her though.

Good luck to you.