In all fairness, I was in a similar situation. Except the principle was my ex's cousin while the kids where in elementary school. I too was told of the abuse every time my children visited or were allowed a conversation with me. I made calls to children's services that were ignored, because there was also a cousin at the local cps office as well.
When two of the older children made it to middle school they were afraid to tell anyone, because they just got into more trouble when they had talked in the past. I called the middle school counselor and she spoke to the kids, and then I contacted the state officials over the department. They in turn sent workers from another county in to check on the kids. It came out there were numerous reports made that were never followed up on. By neighbors, myself, church members and other teachers.
Abuse was founded, a few people lost their jobs. Dad took off to another state with the kids.. I filed a change in custody and the kids now live with me.
So to be fair, lets not assume that these children are not being abused. It does in fact happen. I am not saying that *is* the case here, but it could be.
In fact, when he took off to another state the step mother hit and choked my daughter and threatened to kill her. I called the police to check on them and step mom admitted it all happened. I called childrens services there too, and was told I had no rights to my children by the cps worker and that I would be brought up on criminal charges if *anyone* made another report.
I have little to no faith in cps, my oldest daughter was recently harassed so severely she went into pre term labor... One worker is on admin. leave pending investigation, another has been terminated and my daughter has filed suit against the office and the state. The report was not even filed on my daughter, it was on her stepchildrens mother.