The second public hearing of the national royal commission into child sex abuse is expected to provide insights into how families and children are groomed by pedophiles.
The second hearing opens in Sydney on Monday and will look at how sex abuse allegations against a YMCA child care worker were handled by both the voluntary organisation and the police.
Jonathan Luke Lord, 26, was sentenced in January this year to 10 years in prison, with a non-parole period of six years, for molesting 12 boys aged between six and 11.
The offences occurred from 2009, when he was first hired by the YMCA in southern Sydney, up until the day he was stood down in September 2011.
The CEO of the Royal Commission into Institutional Responses to Child Sexual Abuse, Janette Dines, says the hearing will examine the responses of the YMCA and the police to allegations made in 2011 that Lord sexually abused children in the care of association.
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Ms Dines also says the hearing, which could run for two weeks, is expected to provide insights into the practice of grooming, "where an offender deliberately establishes an emotional connection with a child, the child's family and others prior to a child being sexually abused".
The commission's function is not to examine individual cases of alleged abuse, Ms Dines said in a statement.
It will look at policies and procedures around the recruitment, training and supervision of staff working in out-of-school hours care, examine where systems failed and what institutions offering before- and after-school care and vacation care can do.
Lord worked in before- and after-school programs and in a YMCA creche, also finding private babysitting clients through his job.
Some of the abuse happened on bus trips to and from YMCA daytime activities and at YMCA events.
AAP reported earlier in the year that the YMCA, whose NSW chief executive Phillip Hare at first said it was not association practice to ring referees, later clarified it had checked two Australian work references provided by Lord.
But the association said it had not checked on his overseas employment, which was terminated over similar allegations of child abuse.
Lord had listed the US camp job on his resume but did not specify where he had worked and did not provide contact information for the employer, the YMCA told AAP.
The hearing at Governor Macquarie Tower will be presided over by Justice Peter McClellan, chair of the commission.
