Assuming your husband hasn’t voluntarily gone with police for an assessment, the police would have on his file a custody report & an emergency examination authority… being a parent of a child, the police would have also had to consider their obligations under the child protection act & the DFV act
…. In short, we (including yourself) don’t know the extent of the reports on police file, or if or what other notifications were made to whom & stating what. Also, whatever is on his file at the mental health facility he attended …. ALL based on a lie.
You need to talk to police & have the file updated to clear his name