The Corrections Department will tighten up procedures for vetting sponsors for its temporary release programme, after the escape of Phillip John Smith.
The murderer and child molester was caught in Rio de Janeiro a week after fleeing New Zealand while on temporary release from prison.
He arrived back in the country under police escort early yesterday, and was taken to the maximum security unit at Auckland Prison.
The Department's northern regional commissioner Jeanette Burns said it would be looking more carefully at the eligibility and suitability of people sponsoring prisoners on temporary release.
And she said decisions would be made on whether more secure monitoring was needed.
"Just that whole question around eligibility versus suitability, whether we need more secure monitoring."
She said Smith was also currently segregated from other prisoners.
Birth father 'relieved' Smith's back in jail
Smith's birth father, John Traynor, said he was relieved the convicted murderer and child molester was back in prison, for the sake of his victims' family.
Mr Traynor said he was pleased Smith had been brought back to New Zealand so quickly.
He said the community, and especially the family of Smith's victims, were now safe again.
Mr Traynor said he did not expect his son to be released from prison for many years now.
Police said it could be several weeks before charges were laid against Smith over his escape.
Smith was jailed in 1996 for stabbing to death the father of a boy he had been convicted of sexually assaulting.
He was taken into custody in Rio de Janeiro on 13 November after fleeing New Zealand.
Using a passport issued in his birth name Phillip Traynor, he flew out of Auckland on 6 November to Chile, and then travelled to Brazil.