Police and Oranga Tamariki have finished interviewing people at Gloriavale in relation to a range of alleged offending, including sexual offences.
The two agencies conducted four days of interviews at the remote West Coast community, where police say a significant number of community members were spoken to.
West Coast Area commander inspector Jacqui Corner said police were also working with former community members who had approached police with concerns.
"We can confirm police are undertaking a comprehensive review of Gloriavale matters.
"Further inquiries are required and as such police are not in a position to release further details at this time."