Barnardo's said her abuser was arrested and Susan was put in touch with the charity.
She said Barnardo's would continue to campaign tirelessly for children and families seeking asylum.
The committee took evidence from Barnardo's, the Poor Sisters of Nazareth and the De La Salle Order.
Pamela Smith, Chair of the Scottish Local Authorities Economic Development Group and Jim Wallace from Barnardo's Scotland.
Andy James, from Barnardo's Cymru, said that living in the country was far from idyllic for many.
Earlier this week the children's charity, Barnardo's Scotland, called for the process behind adoptions to be speeded up.
The Barnardo's TV campaign, which attracted 840 complaints, featured repeated scenes of violence and drug taking which many viewers found upsetting.
Representatives from Barnardo's Cymru, Children in Wales, Action for Children and the NSPCC also gave evidence to the committee.
This was undertaken as a partnership project with SNAP Cymru and Barnardo's Cymru.
Barnardo's called on the government and devolved administrations to do more to protect children from being trafficked for sex.
Lynda Wilson, Northern Ireland Director of Barnardo's, said the inquiry should be based on "effectiveness, fairness and focus on victims".
Barnardo's Hopscotch programme is run by the children's charity in association with Tayside Council on Alcohol and Angus Carers Association.
The data published by Barnardo's also uncovers a "postcode lottery"' governing the fate of children waiting for court decisions throughout Wales.
The campaign coincides with the launch of an initiative by the children's charity Barnardo's to encourage toddlers to take more exercise.
The report did, however, single out some projects where "excellent interventions" were delivered, including the Barnardo's Cymru Taith service in south Wales.
Martin Narey, chief executive of Barnardo's and chairman of the campaign, said fulfilling the government's commitments could be Mr Brown's "greatest legacy".
Her concern is shared by Pam Hibbert, the charity Barnardo's principal officer.
"Back in Barnardo's day the contrasts between rich and poor were stark, it was easy to see who was in need, " she says.
"Barnardo's have published 'red lines' as a condition of their involvement in the family returns process, " it said in its first annual report.
Yvonne Rodgers, director Barnardo's Cymru, said the problems had been caused by "insecurity" in the family courts, with additional expert assessments being routinely ordered.
Thousands of children are being unofficially excluded from school, and official statistics showing a drop in exclusions are misleading, says the children's charity Barnardo's.
In the second part of the committee Barnardo's Scotland warned the committee the Bill as it stands would have 'major and unintended consequences' for Scotland.
He started his career in the NHS and was head of the prison and probation services before leading the Barnardo's charity from 2005 until 2011.
The children's charity Barnardo's says there needs to be more co-ordination from the authorities to ensure the right help is available for these brutalised children.
The Barnardo's study said the most disadvantaged unemployed 16 and 17-year-olds were seeing their chances of learning new skills to help them find work "rapidly declining".
The charity Barnardo's welcomed the figures but called on the government to widen the scope of Youth Contract training to a broader group of young people.
Last week a report from the charity Barnardo's said they were written off by the education system, with nearly eight out of 10 gaining no qualifications.
BBC: NEWS | UK | Education | Money idea for children in care
"Times have changed and some of Dr Barnardo's childcare methods are now quite unpalatable, something he would probably agree with if he were alive today, " she says.
He set up a business called Sparco Ltd which initially distributed bags bearing the words "breast cancer" and later the word "Bernhardos" based on the Barnardo's logo.
Barnardo's report comes amid a series of government pledges marking the midway point of the coalition - including a promise to help with the expense of childcare.
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