Oranga Tamariki's mishandling of a case of a boy alleging abuse has revealed widespread shortcomings in its use of one of the most important child safety tools.
Reviews showing up problems with the Child Protection Protocol have come to light through RNZ inquiries.
The agency says it is making improvements.
The man accused says because the investigation was mishandled, it was inconclusive, which was unsafe for the boy, and for the whānau.
Phil Pennington is looking into this.