One thing I learned a long time ago is that schools tend to punish the victims and not the bullies.
The schools where I came from punished both parties, when my kids were school aged. If someone is attacked, IMHO, they should not be punished for defending him/herself.
30 years ago my daughter was in 3rd grade and told me that there was a 6th grade boy who was bullying the younger kids on the playground and she was afraid to go out for recess. This was before caller ID so I called the Bully’s father and told him to reign in his kid.
He got verbally abusive and demanded to know who I was. I told him that I knew who he was and where he lived and if his kid bullied my kid I would be dealing with him at a time and place of my choosing.
A few days later my daughter said the bully was no longer hassling kids.