Catholic Church officials have admitted their treatment of a woman who was sexually abused at 14 by the chaplain of her Brisbane convent school lacked justice and compassion, the Royal Commission on Institutional Responses to Child Sex Abuse has heard.

The church's Towards Healing process for responding to victims' complaints amounted to ''re-abuse'' of Joan Isaacs, admitted Mary Rogers, who facilitated Mrs Isaacs' case for the Catholic archdiocese of Brisbane.

"The protracted negotiations ''had the effect of re-abusing Mrs Isaacs and it was certainly not a compassionate response"". Credit:James Alcock

Mrs Isaacs, 60, turned to the church for an apology, counselling and compensation after her abuser, Frank Derriman, was convicted and jailed for eight months. Her Towards Healing meeting with church representatives took place in April 1999. After two years of fraught negotiations she was paid $30,000, most of it wiped out by costs. She had 10 sessions with a psychologist but had to repeatedly chase up the Brisbane archdiocese to pay her psychologist's invoice.