I think my daughter is being sexually bullied?

I noticed bruises and redness around her genitals lately... I sometimes bath her because she sometimes forgets to wash properly and I asked her has she started touching herself and its hurt and she said No, I know people take advantage of her because she has autisium so I have raised it with the head of her school

Updates
+1 y
An Update on this after much talking too She admit, her dad picked her up early when she had a dentist appointment instead of taking her to the dentist, he drove her to a hidden spot in town forced her to dress and rubbed her vagina, he tried to rape her but she was too tight and she ran back to school. When The police asked the dentist why her dad was called instead of me the receptionist said both parents numbers are on the contact details so a text reminder was sent to both numbers.
Updates
+1 y
The Police made them remove her dads number and gave them my home number, he is currently in jail
I think my daughter is being sexually bullied?
Post Opinion