If you or your child have been sexually abused, you can make a civil case and take the offender o court. You can sue for damages for injuries and include the medical bills and lost wages also. Unfortunately, there is still such a social stigma involved with rape that the victim is traumatized not only physically but emotionally as well. Never the less, if there was unwanted touching, it is considered assault and battery. If some one has used their authority in an unreasonable or dishonest way, it is called unlawful restraint.
If you catch some one watching you or listening to you with out your permission, it is called invasion of privacy. When some one intentionally acts in a way that can cause you extreme distress emotionally, it is called negligent infliction of emotional distress.
If this has happened, this person has broken the law. They are the one who needs to stop his inappropriate actions and pay for the damages. They can no longer mess with your emotions and hurt or threaten you or your loved ones.
You or your child may have been abused by some one in authority. If they begin to show signs of shame or guilt and low self esteem, you should look into his schedule of activities deeper. Look for any bruises or if he is suddenly making excuses for not wanting to attend school. If the depression and detachment continue or get worse, you may need to consider changing schools for him. He may not feel safe enough to talk about it until he is out of the environment completely. You will need to make the first move for him.