DUBLIN (AP) – Roman Catholic Church leaders in Dublin spent decades sheltering child-abusing priests from the law and most fellow clerics turned a blind eye, an investigation ordered by Ireland’s government concluded Thursday.

Dublin Archbishop Diarmuid Martin, who handed over more than 60,000 previously secret church files to the three-year investigation, said he felt deep shame and sorrow for how previous archbishops presided over endemic child abuse – yet claimed afterward not to understand the gravity of their sins.

Martin said his four predecessors in Ireland’s capital, including retired Cardinal Desmond Connell, must have understood that priests’ molestation and rape of boys and girls “was a crime in both civil and canon law.

For some reason or another they felt they could deal with all this in little worlds of their own.