It wasn't left to the police she'd already gone to the police. It sounds from the story like the school did literally nothing at all.
Also you don't need to compel Snapchat to release the images they're 13-year-old boys they absolutely have permanent copies on their phones.
Because the question was political. I'm sorry that you've got such a teeny tiny brain that you can't work out that if somebody asks a political question then the response must demonstrably be political. I don't know how else to put it.