What to do about this incident

[StormySam]

My DD is 10 (SEN and quite vulnerable). Today at school a boy she was playing with in a group pulled up her top fully exposing her. She shouted at him and took herself away to have a cry. She said he said sorry but it was "yeah sorry whatever". She tried to tell a teacher but the teacher told her to hurry up so she couldn't get the words out.
AIBU reasonable to go into school with her tomorrow and ask for this to be dealt with? And if so, how? She is embarrassed and upset so I'm not sure what should happen. I do feel angry on her behalf. I thought she might get a few more years of being a female and not having to deal with this shit.

I would keep her at home, email the school tonight and follow up with a call in the morning about how can they safeguard your child from being assaulted again. She wouldn't return until they have listened and acted.

I absolutely would be raising this with the school, I would also be unhappy that she hadn't been given a chance to explain things to an adult.

This is so sad to hear and I’m sorry that it happened to your DD.
It sounds like she tried to do the right thing. It’s not acceptable that she wasn’t listened to.
This should have been recorded as a serious incident.
Email the Headteacher outlining the incident and your concern at her not being heard. Request a meeting asap and as a PP has said I’d be asking how they intend to Safeguard your DD.
Can she wear a crop top or does she have sensory needs?
I’d also be asking if she has a one page profile to remind staff about giving processing time and to be patient when she is trying to express herself.

I would absolutely be emailing the school this evening with your concerns outlined and ask how they intend to safeguard your DD in future. I'd ask for an urgent meeting tomorrow too and assurances that the boy in question will be kept away from your DD.
This is very serious and they should be treating it as such.

My DD experienced a boy grabbing her chest at a similar age. She's 3/4 years on from it and still remembers it.
school responded immediately to my email sent in an evening, followed by the head teacher the same night assuring me it was being taken seriously. (The boy in question had SEN). Next day my DD was taken to one side and reassured that she would not be sat near the boy, and he would be escorted at lunchtime to the canteen (it was in the lunch queue it happened). His mum was also required to come into school as they went through the severity of what happened. (His mum was incredibly apologetic and the school kept the measures up so my daughter felt much safer again in class).
I would expect and hope that your DDs school take it incredibly seriously and similar measures should be put in place to reassure her (and show how serious it is to the boy who did it).

I'd be going to the police.

Just a simple message would be fine and the teachers would deal with it.
Just outline what happened as you have done on here.