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A new report detailing abuse at a Catholic school and a related community centre in Christchurch describes the institutions as 'hell on earth'.
The Royal Commission has outlined sexual, physical and spiritual violence at Marylands School and Hebron Trust as part of its inquiry into abuse in care.
It says it's aware of no other institution where sexual abuse has been so extreme.
Sonja Cooper has represented over thirty of these survivors.
She spoke to Ingrid Hipkiss.