A relative of the 9-year-old Raetihi boy - who died after he had allegedly been given a dose of methadone - hopes an arrest over the death will end speculation.
Police yesterday charged a 42-year-old woman with the manslaughter of Antony Herewini-Christensen after a four-month investigation.
He was found dead in his bed in December.
The woman, who has been granted interim name suppression, has been charged with supplying or administering the Class B drug methadone.
Antony's relative and next-door neighbour Duncan Metekingi told the Herald there was a sense of relief after the arrest in the small community of 2000 people that questions would be answered.