An MP has claimed he raised concerns about Powys Council's children's services two years ago, after a report found failings had put them at risk.
Glyn Davies said he was contacted by a constituent who had concerns over the safety of a young child and when he contacted the council about the case, he experienced an "almost total lack of recognition of the seriousness of the case."
A report by the Care and Social Services Inspectorate Wales (CSSIW), found a significant number of serious concerns over performance, quality and delivery of children's services.
It is thought around 650 children are under the care of social services in the county.
Powys Council has apologised and said an improvement board has been put in place and interim staff to 'ensure the future is brighter'.
Council leader Rosemarie Harris confirmed an inquiry into the manipulation of data is underway and the council has 'asked the police for their advice'.
Ms Harris also claimed Powys is a 'difficult county to provide services' because of its rural landscape.
She added she accepts comments made by Social Services minister Rebecca Evans that she has concerns over adult services and schools.
Glyn Davies said he was 'disturbed by what he was told' and raised the issue with the Council and received a 'disappointing' response.
He added however he had been 'encouraged' by the response of Ms Harris.