Where did your son get that horse toy? (Is it from your 99 home?) IF so, I don't think your husband need to bring your son to the police station wor????(I think no need to be that serious ah??) He just 4 years old. ANd you and your husband should teach him this is wrong and tell him to said sorry to your 99 or 姑姐.
So, did you found out is it your son really take the toy without asking your 99 or 姑姐? Or they give it to your son ah?? Please found out the ture first and teach your son la.
Your son must be so scarce when your husband bring him to the police station.