A police vetting officer visited the Dunedin home of the accused Christchurch gunman in the month before he received his gun licence.
Police today revealed the gunman also used two referees, both residents of New Zealand, after an earlier referee, a family member, was not permitted because they did not live here.
"Based on the information available to us at this time, we have found that correct process was followed by staff involved in the firearms licence application," the spokesperson said.
The accused filed an application for a firearms licence in September 2017 in Dunedin.
"The vetting process was undertaken by a Police Firearms Vetting Officer in Dunedin, where the accused resided," the spokesperson said.