If you happy to see SHIRT
Chat to the parents about this and If you happy to see SHIRT them to bring their kids to a police station, where a policeman can sternly tell them what happens to children who are sent to Juvenile detention for assault. If the parents refuse, give them the alternative of having their child’s hair cut just like your child’s. If they still refuse explain that you are going to file assault charges at the police station, explaining that if they’ve done it to your child, they will have done it to others. You can also take it up with the school, and ask them if you can bring in a policeman to have a chat to them. If the schools say thay’d rather handle it their own way, find out what that is and check that it has been done.
If you happy to see SHIRT
So, address the specific If you happy to see SHIRT with each set of parents with a specific goal in mind. I would also recommend you bring your daughter with you to speak with each family. In this way you empower her as she is part of the solution and each family has to face her as the victim. It also gives her a positve example of how one handles situations as an adult. You can model strong, responsible and reasonable adult accountability. Help her be part of ther healing process.