Annie Woodland, who suffered severe brain damage when she nearly drowned during a school swimming lesson in Essex 13 years ago, won a landmark Supreme Court ruling today in her battle for compensation against a local education authority.
Ms Woodland's mother, Alison Morris, said she was "greatly relieved that justice has been done".
She said: "It should never have come to this in the first place. No child should suffer in this way. This ruling will make such a difference to families in the future."
Ms Woodland's father Ian said: "It has caused enormous damage to our family."
He added: "Up until this ruling, we had seen only injustice."
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