In March this year, Burrett was convicted of 21 charges of sexual abuse, including the rape, sodomy and forced oral sex of a dozen girls aged 5 to 12.
A Weekend Herald investigation found Burrett had been bouncing around schools for the past four decades, working as a principal, deputy principal, teacher, relief teacher, tutor, special needs bus driver and caretaker.
His behaviour had raised many red flags, and he was forced out of two North Island schools, but he was never reported to his professional body, nor was his past noted on his official record.
After Burrett's 19-year jail sentence was delivered last month, Education Minister Hekia Parata confirmed the case had prompted her to ask the ministry and the Education Council to investigate extending their powers to cover all people who work with children in schools, including caretakers and bus drivers.
Mrs Parata expects to hear back from the ministry and council in June.