The first thing you do, and what you MUST do is document this. Hopefully you are keeping a divorce/custody documentation journal - if so, write it in there. (If not, start one!) You can also ask your daughter what happened and record her. Dont push her or ask her loaded questions, just "what happened".
Maybe you dont want to feel like you are digging for dirt on your wife, but trust me, what you really dont want is to be 6 months out from now wishing you had.
