By james art Roderick O’Gorman received the “detailed” report from the Children and Families Agency on its engagement with Kieran and his family on Friday night.
A spokesman for Mr O’Gorman said the Department would be contacting Tusla about the findings of the “disturbing” case.
Gardai launched a homicide investigation in October into the disappearance of the Co Louth schoolboy, who has potentially been missing for two years, unknown to authorities.
Gardai suspect Kieran may have died in 2022 when he was six years old.
Tusla said it raised “significant” concerns about the missing child with police in August.
Last week, investigators searched a former family home in Dundalk and adjoining land.
Ireland’s police chief described the case as “exceptional” and said he had never seen anything like it in his 40-year career.
Police Commissioner Drew Harris said Friday that he was getting updates on the investigation every day.
He said gardaí had received “a huge amount of information from the public” following several appeals.
“I can assure you that this investigation is very active, we are pursuing all the lines of inquiry that we have,” he said, speaking in Co Laois.
“We’ve received a huge amount of input from the public so that all needs to be processed and we’re also engaging with Tusla and we’ve received a lot of input from Tusla as well.
“This all fits into the investigation. This is a very complex and well-funded investigation and is being assisted by national bureaus in terms of the expertise around interviewing and assessing the witness statements we have received so far.’
Mr O’Gorman said he would receive a report from Tusla on its engagement with Kieran and his family.
A separate report will be issued to Education Minister Norma Foley in conjunction with Tusla’s Education Support Service into Kieran’s interactions with school authorities.
“My department and I will engage with Tusla in terms of implementing each of the immediate recommendations of this report,” Mr O’Gorman said.
“It is a detailed report and we are very aware that there is an ongoing Garda investigation, a homicide investigation, so Tusla will not release anything that in any way prejudices an ongoing homicide investigation.
“But importantly, that report will also go to the National Review Panel, which is the independent body that looks at the death of any child that was known to Tusla, and the internal report from Tusla will be looked at by the National Review Panel.”
“But we will act immediately on all the key recommendations this review provides us with today.”
The National Review Panel, which reviews child deaths and serious incidents to improve services, prioritized the case.
Tusla said its internal review of interactions with Kieran Durnin and his family would not be made public.
A spokesman said: “In line with standard practice in sensitive situations and in the context of the live investigation by An Garda Siochana and the highly sensitive nature of the personal information involved, the review cannot be published at this time.”