Tiana's top was ripped at school today

We just received a call from Tiana's school telling us that she had ripped her top. They said that she was pulling on it, yet we've never seen her do such a thing. We had some problems with her first school too so we're wondering if this is happening not by accident, but intentional. Tiana had suspicious red marks on her back several times before moving her to this school. Question is; are they mistreating her because she has a speech problem and cannot tell us what's happening to her? I don't know, I hope that's not the case, but we will be watching to see if any more marks turn up on her body. If so, then we'll have to take some action. No one wants to think that their child can be in any danger at school, from a teacher, or any adult when their out of your control, but as we all know, things like this can and do happen. We'll be watching.