i would try to get her back because its not cool that they arent telling u how shes doing. u should know at all times whether or not she is ok. and if they arent telling u then thats a problem. i think if u have joint custody then it could be considered kidnapping if he took ur daughter and u werent ok with it. if it feels like a bigger problem the u could ask for advice from an officer. they could tell u what u should do