A report into fears that were raised about a paedophile head teacher's closeness to teenage girls before his arrest is not yet being made public.
Neil Foden, a "depraved, arrogant bully", is serving 17 years for sexually abusing four young girls but there are accusations dating back four decades.
Cyngor Gwynedd commissioned a barrister-led investigation into events in 2019 when the council did not look into concerns around Foden's relationships with some girls.
The council said the report was not being shared with councillors or the public because it contained "sensitive and confidential information, including information about children, details about employment matters and personal data".
BBC Wales has been told four members of staff were part of the decision not to investigate Foden in 2019 and three still work for the council.
Officers received the report's conclusions in mid March and Newyddion S4C has seen an email sent to councillors saying the council needed "specialist legal advice… to establish what is legal to release further".
When asked why the council's own legal department could not handle the barrister's conclusions, it said its main priority was the possible impact on the victims.