When Charlotte self-harmed at Tasmania's Ashley Youth Detention Centre, a female worker slammed her head into a wooden bed frame and told her to "grow up".
Charlotte, who gave evidence under a pseudonym to an inquiry into child sexual abuse in public institutions, said a worker "Edwin" left her alone with four boys who "did what they wanted" with her.
She was on an off-site trip with a worker who left her alone with six boys. She said one of the boys had sex with her in a hut.
