The first hearing in the Scottish child abuse inquiry has heard apologies from organisations which ran children's homes around the country. More than 60 institutions, including several top private schools and church bodies, are being investigated. The inquiry, which is being chaired by Lady Smith, is looking in detail at historical abuse of children in residential care. It is expected to report in late 2019 - four years after it was set up. The opening session in Edinburgh heard apologies from groups who said they deplored that physical sexual abuses could occur". The High Court judge revealed the number of survivors who had already spoken to the inquiry team was "very far in excess" of 200. The inquiry states its purpose as being "to investigate the nature and extent of abuse of children whilst in care in Scotland", while considering "the extent to which institutions and bodies with legal responsibility for the care of children failed in their duty", in particular seeking any "systemic failures". The inquiry has been plagued by problems since it was set up in October 2015. Around 6m has been spent on it during this period. Its original chairwoman, Susan O'Brien QC, resigned from her post in July 2016, citing government interference. A second panel member, Prof Michael Lamb, also resigned, claiming the inquiry was "doomed".